Other Furniture Related Product Manufacturing (U.S., NAICS 3379)

A Histometrics industry-group primer for public- and private-market investors

Rollup primer. In the North American Industry Classification System (NAICS), 3379 is a four-digit industry group — a rung above individual industries — that gathers the furniture-adjacent home durables that do not fit the household-furniture (3371) or office/institutional-furniture (3372) groups. It has two members: 33791 (Mattress Manufacturing) and 33792 (Blind and Shade Manufacturing). This page synthesizes across them — how they compare in size, growth, ownership, and economics — and gives the group's own federal figures. For company-level depth, follow the child primers: 33791 and 33792.

1. Overview

NAICS 3379 is best read as a grab-bag, not a single market. Its two children — beds and window coverings — do not compete with each other, share almost no customers, and run on different factory floors. NAICS files them together because both are home durables that sit between manufacturing, home improvement, and housing rather than because they form one industry.[2]

What they genuinely have in common is the part that matters to an investor:

• Both are mid-to-small, mature U.S. manufacturing niches whose demand rises and falls with the housing cycle — home sales, remodeling, and new construction — and therefore with mortgage rates.[3][23]
• Both are small-firm industries by federal definition: the U.S. Small Business Administration treats a maker with up to 1,000 employees as a small business in each, and almost every firm in both clears that bar.[41]
• Both have been reshaped by imports: a large share of what Americans buy is made abroad, so domestic factory shipments understate the market and have been flat-to-shrinking.[3][23]
• Both are consolidated at the top by private equity (PE) — investment firms that buy and control private companies — with a long tail of small independents beneath.[18][33][35][36]
• Both grow revenue-per-unit through premiumization rather than volume: pricier foam/hybrid/adjustable beds on one side, motorized "smart" shades on the other.[3][23][37]

Together the group runs about $11.4 billion in annual domestic factory shipments and employs roughly 33,000 U.S. manufacturing workers.[1] Mattresses dominate it; blinds and shades are the smaller, more import-pressured tail. Both children were shrinking in the most recent data, though on different clocks: the mattress industry's own trade association put 2025 U.S. wholesale value down 6.5% and units down 13.2% year-over-year, a cyclical trough[5][6]; blind-and-shade manufacturing employment fell 67.7% between 2000 and 2024 on the Bureau of Labor Statistics' count, a structural slide.[24]

2. What's inside — and how the two children differ

The whole distinctive value of a rollup at this level is the contrast between the two members. They are similar in factory-count but very different in scale, capital intensity, and how an investor can actually own them.

[a] 33791 concentration and HHI (Herfindahl-Hirschman Index, a standard market-concentration score) from the child primer. [b] 33792 CR4 (four-firm concentration ratio) from the child primer; its HHI is suppressed by the U.S. Census Bureau.

Read the table this way. Mattresses are the bigger, more capital- and materials-intensive business: 77% of the group's revenue on only 68% of its workers means each mattress worker turns over far more product value — because a bed is a big-ticket item stuffed with bought-in foam and steel. Blinds are smaller, lighter, and more exposed to imports, with more of their value created downstream in measuring and installation that the factory count never sees. Neither child has meaningful sub-industry structure — each is a single six-digit code — so the real internal divide in both is commodity tier versus premium tier, not product category: base innerspring beds against premium foam/hybrid/adjustable on one side, and big-box stock blinds against measured made-to-order custom on the other, where a federal analysis put custom at roughly 44% of units but a disproportionate share of revenue.[25] On ownership the split is sharp: a public-market investor can own the mattress leader outright but has no clean U.S.-listed way to own the blinds business at all.

3. How big it is (this level's rollup figures)

Core federal figures for NAICS 3379, from our ingested ground-truth stats (stats-3379.md). These are the sum of the two children and reconcile exactly to them:[1]

The employment line is the least solid number here. The group total of 32,920 is built from Census County Business Patterns, but the two federal statistical programs disagree on the blinds side: CBP puts 33792 at 10,694 (2023) while the Bureau of Labor Statistics' count puts it at 8,450 (2024) — different programs, different reference years, different coverage rules.[1][24] Do not average them, and do not treat the group total as precise to the worker; treat "roughly 31,000–33,000" as the honest range and the direction as down.

A note on the combined concentration numbers. The group's CR4 of 47.2% and HHI of 642 look lower than the mattress industry's own figures (56.1%, ~982). That is a statistical artifact, not a real dilution of market power: the two children are separate product markets that do not compete, so blending them into one "market" mechanically lowers the concentration scores. The honest read is that each child is more concentrated than the group total suggests — and in both cases the federal figure is itself a floor, because it counts only domestic factories and excludes the large volume of imported finished product concentrated among a few foreign producers.[23][29] A federal analysis of the broader U.S. window-coverings retail market found three manufacturers taking almost 38% of 2020 dollar sales, well above what 33792's CR4 implies about real market power.[25] Use the child figures, not the rollup, to judge competitive intensity.

Undercount and end-market caveats. These are U.S. manufacturing figures — product valued at the factory gate — and they understate the world an investor competes in, for the same two reasons in both children:

1. Imports don't appear here. A large share of U.S. mattress and (especially) blind consumption is imported, so the retail market is far bigger than domestic factory shipments. The U.S. mattress retail market runs near $18 billion — roughly double shipment value once markup and importers are counted — against a trade-association wholesale market (including imports) of $9.25 billion in 2025.[5][40] On the blinds side the published end-market estimates disagree by scope and should not be reconciled: roughly $3.8 billion for U.S. window coverings in 2024 from one market-research house, about $6.7 billion in 2021 from a federal analysis using a broader definition, against independent industry analysis putting 2026 U.S. manufacturing revenue near $2.2 billion.[23][25][39] Pick a definition before you pick a number.
2. Value created downstream is missed. For blinds especially, much of what a customer pays is created in measuring, made-to-order assembly, and installation by dealers and contractors classified as retail or construction, not manufacturing. For mattresses the gap is mostly retail markup and pure-marketing brands. In neither case is the gap informal or micro-operator activity — these are reasonably complete counts of the factories themselves; the missing pieces are imports and the retail/install layer.[23]

4. The investable universe (where value concentrates across the children)

Value in both children concentrates in the large branded manufacturers at the top of a three-tier structure — a few branded leaders, a middle of mid-size and contract makers, and a long tail of small shops.[7][23] But who owns the top differs so much between the two that the investable maps barely overlap.

Mattress (33791) — a public leader plus a deep private/credit pool:

• Somnigroup International (NYSE: SGI, formerly Tempur Sealy) — the one scaled public pure-play, at roughly $7.5 billion of FY2025 consolidated sales and about $16 billion of market value in mid-2026; owns Tempur-Pedic, Sealy, Stearns & Foster, and (since February 2025) the retailer Mattress Firm.[8][12][13]
• Sleep Number (NASDAQ: SNBR) and Purple Innovation (NASDAQ: PRPL) — smaller, higher-risk exposure to adjustable-air and specialty-foam niches, both currently challenged: Sleep Number posted a $132 million net loss in FY2025, and Purple did about $469 million of FY2025 revenue against only ~$47 million of market value.[15][16][17]
• Leggett & Platt — not a bed maker but the industry's largest component supplier (springs, foam, adjustable bases), with $1.56 billion of 2025 Bedding Products trade sales; Somnigroup announced an all-stock bid for it in April 2026 at roughly $2.5 billion including debt, pending shareholder and regulatory approval.[10][11]
• Everyone else — Serta Simmons, Corsicana, Casper, Saatva, Kingsdown — is private, held by PE or strategic buyers, with much of the economics living in leveraged loans and high-yield bonds.[18]

Blind & shade (33792) — no U.S. pure-play at all:

• Nien Made Enterprise (Taiwan Stock Exchange: 8464) — the world's largest window-blind maker and the cleanest listed pure-play, with roughly $960 million of trailing revenue and a ~$3.1 billion market value in mid-2026, but foreign-listed and carrying real concentration risk: one customer was 39% of revenue and the Americas 76% in its 2022 filing.[29][31]
• Somfy SA (Euronext Paris: SO) — the listed way to own the motorization theme (tubular motors and controls), not blinds themselves.[37]
• Home Depot / Lowe's (NYSE: HD / LOW) — the dominant U.S. retail channel, not manufacturers; neither breaks out window-covering sales, so exposure is heavily diluted.
• The branded leaders — Hunter Douglas (3G Capital took ~75% in February 2022; the shares were delisted on October 31, 2022), Springs Window Fashions (Clearlake since 2021), and family-owned Lutron — are private.[33][34][35][37]

The synthesis: a public-market investor who wants exposure to NAICS 3379 is really buying mattresses via Somnigroup — that single name is the only scaled, U.S.-listed, pure-play in the entire group, and at ~$16 billion it is roughly five times the market value of the only listed blinds pure-play anywhere.[12][29] Blinds and shades are a private-market and foreign-listed proposition, and became more so when Hunter Douglas left the public market in 2022.[34] Reserve the tickers above for this section and §10; full company detail is in the child primers.

5. How the money works

Both children earn on units × price × gross margin, less freight and promotion, and both split into a commodity tier (thin-margin, import-exposed) and a premium tier (the real profit engine). Both are also bulky, size-specific goods where proximity to the customer is the moat — the shared physical logic that keeps any domestic production alive. But the levers differ:

• Mattresses are cheap per cubic foot, so freight favors regional plants and gives domestic makers a moat against distant importers; compression packaging ("bed-in-a-box") shrinks shipping volume 70–80% and is what let online brands disrupt showrooms in the 2010s. The biggest input is polyurethane foam (petrochemical-linked), so margins compress when foam or steel spike faster than retail prices can follow. Manufacturer gross margins run roughly 30–40%.[3]
• Blinds and shades split into made-to-order (custom) — build-to-order, light inventory, brand pricing, the profit engine — and stock/ready-made — standard sizes for big-box shelves, price-driven and most exposed to imports. Here the proximity moat is lead time rather than freight cost: Nien Made disclosed that Mexican production cut quoted North American custom delivery to roughly two weeks from five to seven.[31] Increasingly, domestic "manufacturing" here is really fabrication and assembly of imported components, which is why factory shipments have drifted down even as the retail market grew. The clearest way to lift revenue per unit is motorization — adding a motor plus app/voice control multiplies the average selling price.[23][37]

Do not compare margins across the group without asking where the firm sits in the chain. The disclosed numbers look wildly different, and the difference is position, not quality: on the blinds side the only reported figures belong to scaled global platforms — Hunter Douglas's worldwide Window Coverings segment earned 42.1% gross and 16.9% operating margin in 2021, and Nien Made reported 59.1% gross, 28.1% operating and 22.5% net margin in Q1 2026 — which is evidence of what premium custom mix plus efficient offshore production can attain, not a benchmark for a 20-person U.S. fabrication shop, for which no reliable industry-average margin exists.[30][32] On the mattress side the same spread appears within one industry: Sleep Number's direct-retail model produced a 59% gross margin in 2025 but a 5.5% adjusted EBITDA margin and a net loss, Purple's manufacturer mix 40.2% gross, and component supplier Leggett & Platt's bedding segment a 6.3% EBIT margin.[11][15][16] Gross margin at this level tells you whether a company owns the store, the brand, or the springs.

The shared economic truth across the group: domestic unit volume is flat-to-shrinking, and the growth comes from mix-shift up-market, not from selling more units — mattress category units in the U.S. fell more than 35% from 2021 through 2025 on the market leader's own count.[9] Mattress revenue per worker (~$395K) runs far above blinds (~$242K) because a bed carries much more bought-in material value per unit — a useful reminder that these are different businesses wearing the same NAICS jacket.[1]

6. What drives demand

The two children share one master driver and a set of secondary ones:

• Housing turnover and household formation — the strongest driver for both; moves, new homes, and remodels trigger purchases, so high mortgage rates are the group's main headwind.[3][23]
• Repair-and-remodel — the largest, most stable slice for blinds; a meaningful steady layer for mattresses.[23]
• Replacement cycles — beds wear out on a 7–10 year horizon; blinds turn over more slowly but have a cordless-safety replacement cycle seeded by tightened standards (see §7).[3][27]
• Premiumization / smart-home — trade-ups to adjustable bases and "smart beds," and motorized/voice-controlled shades, lift average selling prices and offset flat unit volumes. In the finalized 2025 mattress data this shows up cleanly: value held up better than units, and adjustable bases proved comparatively resilient while stationary foundations contracted hardest.[5][37]
• Energy efficiency — insulating cellular ("honeycomb") shades and automated daylighting add a modest structural demand layer on the blinds side.[23]
• Hospitality, commercial, and institutional — hotels, dormitories, healthcare, and architectural (contract) shade projects replace product on their own steadier, less rate-sensitive cycles.

7. Regulation

Both children are safety-regulated consumer durables, and both have a live trade-policy overlay — but the specific rules differ, and one important difference is that the mattress regime is mandatory federal law while the blinds regime now rests on a voluntary consensus standard:

• Mattresses: every bed sold in the U.S. must pass the Consumer Product Safety Commission's (CPSC) open-flame standard (16 CFR Part 1633) and an older smolder standard (Part 1632), typically requiring an engineered fire-barrier layer; flame-retardant chemistry faces state scrutiny (California TB117-2013, Proposition 65). Four states — California, Connecticut, Oregon, and Rhode Island — fund mattress recycling via the Mattress Recycling Council.[21][22]
• Blinds and shades: the defining theme is child safety — strangulation risk from pull cords. The operative baseline is the voluntary consensus standard ANSI/WCMA A100.1 (American National Standards Institute / Window Covering Manufacturers Association); its 2022 revision extended cord restrictions to custom made-to-order products, with a compliance date of June 1, 2024.[27] Correction to earlier guidance on this page: the CPSC's mandatory federal rule on operating cords for custom window coverings, finalized in late 2022,[25] was vacated by the D.C. Circuit on September 12, 2023.[26] There is therefore no federal rule banning cords on custom products today; what remains is the voluntary standard plus CPSC business guidance on cord accessibility, inner-cord limits, and marking, and the agency's separate substantial-product-hazard authority.[28] The practical effect on manufacturers is small — the redesign to cordless and shrouded systems has already happened — but it changes how you model compliance and enforcement risk.
• Trade policy (both): since 2021, antidumping and countervailing duties (AD/CVD) on imported mattresses from China and several Asian and other countries have been a material tailwind for domestic bed producers — and in 2024 Commerce expanded coverage to a further set of origins including Bosnia and Herzegovina, Bulgaria, Burma, India, Italy, Kosovo, Mexico, the Philippines, Poland, Slovenia, Spain, and Taiwan, which is itself the lesson: imports migrate rather than disappear.[19][20] On the blinds side tariffs cut both ways — duties on Chinese blinds have historically run to about 25% (with base rates near 11% on synthetic-fiber shades), and 2025 tariff actions added surcharges that manufacturers largely passed through as 8–15% wholesale price increases, pressuring importers but also raising the cost of the imported components domestic assemblers rely on.[38]

Fuller regulatory detail is in each child primer.

8. Consolidation

Both children have been rolled up at the top by private equity while the bottom stays fragmented — the same shape, different endpoints.

• Mattress (33791): concentrated and getting more vertically integrated. Federal figures: top-4 producers hold 56.1% of revenue, HHI ~982 — an oligopolistic top without a single dominant firm. The defining move was Tempur Sealy's roughly $4 billion acquisition of Mattress Firm (the largest U.S. specialty mattress retailer), closing February 5, 2025 after a federal court denied the Federal Trade Commission's (FTC) preliminary injunction; the FTC dismissed its administrative complaint in April 2025 and the buyer renamed itself Somnigroup, making the #1 manufacturer also the #1 retailer.[13][14] The pending Leggett & Platt acquisition announced in April 2026 would push that integration a layer further back, from springs, foam, and bases through branded mattresses to the store floor.[10][11] The parallel arc is the direct-to-consumer (DTC) boom and bust — Casper, Purple, and others bypassed showrooms with bed-in-a-box shipping, then heavy marketing costs and commoditization forced re-consolidation.[3][4][18]
• Blind & shade (33792): top-4 at 48.0% (HHI withheld), which understates true concentration because it excludes finished blinds imported from a few dominant foreign producers such as Nien Made — a federal retail-market analysis found three manufacturers at almost 38% of 2020 dollar sales.[25][29] PE rolled up the branded leaders — 3G Capital → Hunter Douglas (~$7.1B enterprise value, 2022, delisted that October) and Clearlake → Springs Window Fashions (2021) — and the sponsors are visibly running a bolt-on playbook, with Springs adding Sunburst Shutters in 2023 and PowerShades in 2025 to extend into shutters and motorization. The retail/installer layer stays fragmented.[33][34][35][36]

Group takeaway: consolidation is the through-line of NAICS 3379, and in both children it is now running vertically — backward into components and forward into the store or the installed job — not just horizontally across brands. The durable advantage accrues to scaled, brand-owning, distribution-aware players, and the exit for smaller firms is increasingly a sale to a strategic buyer or a PE platform.

9. Risks

The two children carry a near-identical risk set — which is itself the point: an investor in NAICS 3379 is doubly exposed to the same macro forces.

• Cyclicality and housing dependence — revenue in both falls hard when home sales and remodeling stall; mattress category units fell more than 35% from 2021 through 2025 and wholesale value was still down 6.5% in 2025, while blinds have been contracting for two decades.[5][9][23][24]
• Import competition and tariff whipsaw — a high share of U.S. consumption is imported in both; AD/CVD and tariffs are a tailwind for domestic makers but a cost risk for assemblers reliant on imported components, and duty coverage keeps having to expand as importers reroute.[20][38]
• Input-cost volatility — foam and steel for beds; aluminum, PVC/resin, fabric, and freight for blinds — spikes can outrun price increases and compress thin commodity-tier margins.[3][32]
• Leverage — PE ownership has repeatedly turned cyclical downturns into restructurings; Serta Simmons cut funded debt from ~$1.9B to ~$315M in its 2023 bankruptcy.[18]
• Channel and buyer power — Somnigroup's ownership of Mattress Firm pressures rivals' shelf access on the bed side (the precise theory the FTC advanced and lost); a few home-center chains hold buyer power over blinds.[14][23]
• Customer concentration on the listed blinds route — the only clean listed pure-play reported one customer at 39% of revenue and the Americas at 76%, so the "diversified manufacturer" framing does not hold.[31]
• Product-safety liability — flammability recalls (mattresses) and cord-strangulation recalls and litigation (blinds), where enforcement now runs through the voluntary standard plus CPSC's substantial-product-hazard regime rather than a mandatory custom-cord rule.[21][26][28]
• Deal and antitrust risk — the proposed Leggett & Platt acquisition still needs shareholder and regulatory approval, with closing anticipated by year-end 2026.[10]
• Small-player distress — sub-scale branded names have seen equity values collapse (Purple is down to roughly $47 million of market value), and importers reroute around duties.[17][23]

10. How to invest and the outlook

Public-market routes are asymmetric. The only scaled, U.S.-listed pure-play in the entire group is Somnigroup (NYSE: SGI) on the mattress side, now a manufacturer-plus-retailer at roughly $16 billion of market value; Sleep Number (SNBR) is a high-gross-margin, loss-making direct-retail turnaround and Purple (PRPL) a micro-cap specialty-foam bet.[12][15][16][17] For blinds there is no U.S.-listed pure-play — the closest are Nien Made (Taiwan: 8464), geared to the commodity/stock end and carrying customer-concentration and currency risk, and, for the motorization theme, Somfy (Paris: SO), plus diluted channel exposure through Home Depot / Lowe's.[29][31][37] Most investors get 3379 exposure indirectly through home-furnishings retailers or consumer-discretionary funds.

Private and credit routes are where most of the group actually lives. On mattresses: PE control positions (Serta Simmons, Corsicana) and leveraged loans / high-yield bonds where cyclical stress has repeatedly created distressed-debt opportunities. On blinds: small-business acquisition of fabrication-and-install shops, franchise/dealer businesses (e.g., Budget Blinds), and PE co-investment alongside 3G Capital or Clearlake.[18][33][35] The diligence question that generalizes across both children is the same one: what share of earnings comes from branded premium/custom product versus commodity volume sold through a big-box buyer, and how much of the current margin is temporary cost pass-through.

Outlook. The group sits near a cyclical low, not in growth. Mattresses appear near a trough — 2025 wholesale value fell 6.5% and units 13.2%, and the leading trade association projects shipments roughly flat in 2026 with only low-single-digit growth in 2027 as high mortgage rates keep housing turnover subdued.[4][5][6] Blinds are in a slower, more structural squeeze from imports on the commodity end, offset by a growing premium (motorized, custom, contract) edge — best understood as a private-market industry rather than a public-equity one.[23] The shared bull case is eventual rate relief unlocking pent-up moves and remodels plus replacement demand; the shared bear case is a prolonged high-rate, price-sensitive environment. Structurally the direction is the same on both sides of the group: more consolidation, more vertical integration, more premiumization, and continued advantage to scaled, brand-owning players — with a live, two-way trade-policy wildcard over everything. For the complete arguments, read the 33791 and 33792 primers.

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Sources

1. U.S. Census Bureau. 2022 Economic Census — Concentration Ratios and Statistics (receipts, firm count, concentration ratios, HHI) and County Business Patterns 2023 (establishments, employment, payroll), NAICS 3379 / 33791 / 33792. Ingested federal ground-truth figures (stats-3379.md, stats-33791, stats-33792). https://www.census.gov/programs-surveys/economic-census.html
2. U.S. Census Bureau. 2022 NAICS Definitions — 3379 Other Furniture Related Product Manufacturing; 337910 Mattress Manufacturing; 337920 Blind and Shade Manufacturing. 2022. https://www.census.gov/naics/
3. IBISWorld. Mattress Manufacturing in the US — Industry Analysis. 2025. https://www.ibisworld.com/united-states/industry/mattress-manufacturing/876/
4. BedTimes Magazine (International Sleep Products Association, ISPA). Mattress Industry Outlook: Navigating a Slow Climb Ahead. 2026. https://bedtimesmagazine.com/2026/01/mattress-industry-outlook-navigating-a-slow-climb-ahead/
5. ISPA (International Sleep Products Association). Mattress Industry Trends Report 2026 Overview — Final 2025 Data ($9.25B wholesale market; −6.5% value, −13.2% units). 2026. https://sleepproducts.org/2026/07/mattress-industry-trends-report-2026-overview/
6. BedTimes Magazine (ISPA). The Mattress Industry Trends Report Sharpens the Industry Picture for 2025. 2026. https://bedtimesmagazine.com/2026/05/the-mattress-industry-trends-report-sharpens-the-industry-picture-for-2025/
7. Somnigroup International (Tempur Sealy). Fourth Quarter and Full Year 2024 Results (SEC Form 8-K). 2025. https://www.sec.gov/Archives/edgar/data/1206264/000120626425000049/sgireports4q24results.htm
8. Somnigroup International. Fourth Quarter and Full Year 2025 Results (SEC Form 8-K). 2026. https://www.sec.gov/Archives/edgar/data/1206264/000120626426000008/sgireports4q2025results.htm
9. Somnigroup International. 2025 Annual Report Filing (SEC) (U.S. bedding category units down more than 35% from 2021 through 2025). 2026. https://www.sec.gov/Archives/edgar/data/1206264/000120626426000035/sgi-20260330.htm
10. Somnigroup International. First Quarter 2026 Form 10-Q (proposed acquisition of Leggett & Platt). 2026. https://www.sec.gov/Archives/edgar/data/1206264/000120626426000067/sgi-20260331.htm
11. Leggett & Platt, Inc. 2025 Form 10-K (Bedding Products segment: $1.56B trade sales, 6.3% EBIT margin). 2026. https://www.sec.gov/Archives/edgar/data/58492/000005849226000107/leg-20251231.htm
12. Companies Market Cap / StockAnalysis. Somnigroup International (SGI) Market Capitalization. 2026. https://companiesmarketcap.com/somnigroup-international/marketcap/
13. Simpson Thacher & Bartlett LLP. Mattress Firm / Tempur Sealy Close Transaction Following Antitrust Win Against FTC. 2025. https://www.stblaw.com/about-us/news/view/2025/02/07/mattress-firm-tempur-sealy-close-transaction-following-antitrust-win-against-ftc
14. Federal Trade Commission. Tempur Sealy International, Inc. / Mattress Firm Group Inc. Case Record. 2025. https://www.ftc.gov/legal-library/browse/cases-proceedings/231-0016-tempur-sealy-international-inc-mattress-firm-group-inc-matter
15. Sleep Number Corporation. 2025 Form 10-K (59% gross margin, 5.5% adjusted EBITDA margin, $132M net loss). 2026. https://www.sec.gov/Archives/edgar/data/827187/000082718726000014/snbr-20260103.htm
16. Purple Innovation, Inc. 2025 Form 10-K ($469M net revenue; 40.2% gross margin). 2026. https://www.sec.gov/Archives/edgar/data/1643953/000121390026036974/ea0274767-10k_purple.htm
17. Purple Innovation, Inc. — market-capitalization data (CompaniesMarketCap / Macrotrends). 2024–2026. https://www.macrotrends.net/stocks/charts/PRPL/purple-innovation,-inc/market-cap
18. Serta Simmons Bedding. Completes Financial Restructuring and Emerges from Chapter 11. 2023. https://sertasimmons.com/news/serta-simmons-bedding-completes-financial-restructuring-emerges-chapter-11/
19. U.S. International Trade Commission. Mattresses from Cambodia, China, Indonesia, Malaysia, Serbia, Thailand, Turkey, and Vietnam Injure U.S. Industry (antidumping/countervailing duties). 2021. https://www.usitc.gov/press_room/news_release/2021/er0421ll1758.htm
20. U.S. Department of Commerce, International Trade Administration. Final Determinations — AD/CVD Investigations of Mattresses from Multiple Trading Partners. 2024. https://www.trade.gov/final-determinations-adcvd-investigations-mattresses-multiple-trading-partners
21. U.S. Consumer Product Safety Commission / eCFR. 16 CFR Part 1633 — Standard for the Flammability (Open Flame) of Mattress Sets. https://www.ecfr.gov/current/title-16/chapter-II/subchapter-D/part-1633
22. Mattress Recycling Council. Recycling Programs (California, Connecticut, Oregon, Rhode Island) / Bye Bye Mattress. 2026. https://mattressrecyclingcouncil.org/
23. IBISWorld. Blind & Shade Manufacturing in the US — Industry Analysis (U.S. manufacturing revenue ~$2.2B in 2026; high import share; multi-year decline). 2026. https://www.ibisworld.com/united-states/industry/blind-shade-manufacturing/877/
24. U.S. Bureau of Labor Statistics. Industries with employment decreases from 2000 to 2024 (NAICS 337920: 26,182 in 2000 to 8,450 in 2024, −67.7%). 2025. https://www.bls.gov/opub/ted/2025/industries-with-employment-decreases-from-2000-to-2024.htm
25. U.S. Consumer Product Safety Commission / Federal Register. Safety Standard for Operating Cords on Custom Window Coverings (includes market analysis: ~$6.7B U.S. window-coverings market in 2021, ~38% three-firm share of 2020 dollar sales, ~44% custom unit share). 2022. https://www.federalregister.gov/documents/2022/11/28/2022-25041/safety-standard-for-operating-cords-on-custom-window-coverings
26. U.S. Court of Appeals for the D.C. Circuit. Window Covering Manufacturers Association v. CPSC, No. 22-1300 (vacating the CPSC mandatory rule on custom window-covering operating cords), September 12, 2023. https://law.justia.com/cases/federal/appellate-courts/cadc/22-1300/22-1300-2023-09-12.html
27. Window Covering Manufacturers Association / Window Covering Safety Council. Revised Safety Standard (ANSI/WCMA A100.1-2022), compliance date June 1, 2024. 2024. https://windowcoverings.org/revised-safety-standard-2022/
28. U.S. Consumer Product Safety Commission. Window Coverings Business Guidance (stock and custom cord requirements; labeling; substantial-product-hazard framework). 2024. https://www.cpsc.gov/Business--Manufacturing/Business-Education/Business-Guidance/Window-Coverings-15j
29. Nien Made Enterprise Co., Ltd. — company/stock profile (Taiwan Stock Exchange: 8464; ~$961M TTM revenue as of Dec 2025; ~$3.1B market cap mid-2026; major U.S. big-box/online supplier). 2025–2026. https://www.nienmade.com/
30. Nien Made Enterprise — investor page (Q1 2026: 59.1% gross margin, 28.1% operating margin, 22.5% net margin; 96.4% window-coverings revenue share). 2026. https://www.nienmade.com/Investors.aspx
31. Nien Made Enterprise. 2022 Annual Report (39% single-customer revenue concentration; 76% Americas revenue; Mexican production reduces North American lead times to ~2 weeks from 5–7 weeks). https://www.nienmade.com/file/Annual/Annual%20Report%20%282022%29.pdf
32. Hunter Douglas N.V. 2021 Annual Report (global Window Coverings segment: $4.292B revenue, 42.1% gross margin, 16.9% operating margin; commodity exposure and price pass-through). https://www.annualreports.com/HostedData/AnnualReports/PDF/hunter-douglas-nv_2021.pdf
33. PR Newswire. 3G Capital Completes Acquisition of Controlling Interest in Hunter Douglas (≈$7.1B enterprise value; 75% to 3G, 25% Sonnenberg family). 2022. https://www.prnewswire.com/news-releases/3g-capital-completes-acquisition-of-controlling-interest-in-hunter-douglas-301490655.html
34. Euronext Amsterdam. Delisting of HDN.V Common and Preferred Shares (effective October 31, 2022). 2022. https://live.euronext.com/en/products/equities/company-news/2022-09-26-delisting-hdnv-common-and-preferred-shares-will-occur-31
35. PR Newswire. Clearlake to Acquire Springs Window Fashions, a Branded Leader in Custom Window Coverings. 2021. https://www.prnewswire.com/news-releases/clearlake-to-acquire-springs-window-fashions-a-branded-leader-in-custom-window-coverings-301342910.html
36. Clearlake Capital — Springs Window Fashions portfolio page (bolt-on acquisitions: Sunburst Shutters 2023, PowerShades 2025). https://clearlake.com/portfolio/springs-window-fashions/
37. Somfy Systems / Lutron Electronics — motorized shading product and integration materials (tubular motors, app/voice control, smart-home integration). 2025–2026. https://www.somfysystems.com/en-us/
38. VelaBlinds. Import Duties and Tariffs: Costs of Importing Window Blinds to the US/EU (China duties up to ~25%; ~11.3% base on synthetic-fiber shades; 2025 tariff surcharges and 8–15% wholesale increases). 2025. https://velablinds.com/import-duties-and-tariffs-costs-of-importing-window-blinds-to-the-us-eu/
39. Grand View Research. Blinds And Shades Market Size, Share | Industry Report. 2024. https://www.grandviewresearch.com/industry-analysis/blinds-shades-market-report
40. Mordor Intelligence. United States Mattress Market Size, Analysis & Share Report. 2025. https://www.mordorintelligence.com/industry-reports/united-states-mattress-market
41. U.S. Small Business Administration. Table of Small Business Size Standards (NAICS 337910 and 337920: 1,000 employees). 2023. https://www.sba.gov/document/support-table-size-standards