Your Mattress Got Worse on Purpose

I've been shopping for a mattress lately. The plan was simple: figure out what was actually in the bed I'd be sleeping on for the next decade, pick the best one for the price, and get back to my life.

Two weeks in, I had a thirty-row spreadsheet, a dozen browser tabs open and was still no closer to my answer. I was looking at Tempur-Pedic, Sealy and Stearns & Foster, the three big premium names you see in every showroom. I noticed that a certain coil count would appear on one retailer's product page and differ from another's selling what was supposedly the same mattress. Foam densities listed by retailers didn't match the manufacturer's spec sheet either. Independent review sites described materials that the official product pages didn't list. Each brand had between three and eight "models" with subtly different names I couldn't reliably tell apart from each other, much less from competing brands. The information was was contradictory in ways that seemed engineered to prevent comparison.

The practice has a name. Mattress retailers call it the "name game," and it exists to deliberately confuse buyers. The manufacturer makes one mattress, then ships it to ten different retailers with a different cover and a different model name on each. Macy's carries the Sealy Posturepedic High Point Hybrid. Mattress Firm carries the Sealy Posturepedic Elite Brenham II. Sleep Outfitters carries the Sealy Posturepedic Plus Albany. Same coils, same foam, three different names, three different prices. The retailer advertises a low-price guarantee, knowing it'll never have to honor it because no competitor sells that exact model.

The industry doesn't really hide this. Industry-funded comparison site GoodBed explains the mechanic in detail. US-Mattress (one of the largest online mattress retailers in the country) markets itself as the place where you can crack the code and regional independents publish blog posts on the practice.

So I started digging. And it gets worse.

Mattresses are the perfect product for this kind of obfuscation. You buy one every eight or ten years. You can't really test one in a fifteen-minute showroom visit. The materials inside are invisible once the cover is sewn shut. The product is large, awkward to return, and emotionally entangled with sleep, which is something everyone is bad at and worried about.

Walk into any mattress store in America and three brand names dominate the premium wall. Tempur-Pedic, originally founded to commercialize a NASA-developed pressure-relieving foam, now synonymous with the entire memory foam category. Sealy, the innerspring giant that's been making mattresses since 1881 and selling them as the default American bed for most of the twentieth century. Stearns & Foster, founded 1846, marketing copy heavy on words like "master craftsman" and "heirloom," positioned at the top of the wall where the salesperson takes you when you say price isn't really the issue.

Standing in the store, you would think you were looking at three competitive brands.

They're one company.

Tempur-Pedic acquired Sealy in 2012 for $1.3 billion, and Stearns & Foster has been a Sealy brand for decades. The combined entity, then known as Tempur Sealy International, did about $5 billion in annual revenue and accounted for roughly a third of the entire U.S. mattress market.

When you stand in a Mattress Firm and a salesperson walks you from the Tempur-Pedic LuxeAdapt to the Sealy Posturepedic Plus to the Stearns & Foster Estate, comparing feel and price, the salesperson is walking you between three offerings from the same manufacturer.

Tempur Sealy makes the mattresses. Mattress Firm is the largest mattress retailer in the United States. More than 2,300 stores, about $2.5 billion in annual revenue. In May 2023, Tempur Sealy announced it was buying Mattress Firm for $4 billion. The deal eventually closed at $5.1 billion in February 2025.

The Federal Trade Commission, in a rare bipartisan 5-0 vote, tried to block it. The FTC's argument was that the world's largest mattress manufacturer buying the country's largest mattress retailer would allow Tempur Sealy to crowd rival manufacturers off of Mattress Firm's shelves. Vertical integration as exclusion. The FTC took it to federal court in Texas and lost.

Federal Judge Charles Eskridge of the Southern District of Texas, in his 115-page opinion denying the FTC's preliminary injunction, did not find that the FTC was wrong about the merger's likely effects. He found that the FTC was probably right and approved the merger anyway.

A legal analysis of the ruling by Paul Weiss summarized the court's acceptance of the FTC's core finding: “the combined firm will have a profit-aligned incentive to increase the sales of Tempur Sealy mattresses after acquisition by excluding rivals from the Mattress Firm floor.”

In other words, the court agreed that Tempur Sealy now has both the means and the motive to use Mattress Firm's 2,300 stores to push rivals out of the market. The court approved the deal because the foreclosure share, the percentage of total mattress sales that Mattress Firm represents, was estimated at "approximately one and nine percent, which isn't concerning given the competitive nature of the mattress industry." The deal closed on February 5, 2025.

The 'remedy' Tempur Sealy offered to get the deal through, and which the court accepted as sufficient, was a commitment to reserve 43% of premium ($1,500+) floor slots at Mattress Firm for third-party brands for five years. The other 57% (and 100% of the non-premium floor space) is now contractually permitted to be Tempur Sealy products. After 2030, even that 43% commitment evaporates.

The combined entity now operates about 3,000 retail stores, 30 e-commerce platforms, 71 manufacturing facilities, and 4 R&D facilities globally. The world's biggest mattress manufacturer owns the country's biggest mattress retailer, and you cannot walk into one without primarily seeing the other.

Thirteen days after the deal closed, Tempur Sealy International renamed itself Somnigroup International. The ticker changed from TPX to SGI. The consumer-facing brand names did not change.

The play wasn't new for Tempur Sealy. They had already acquired Dreams, the UK's largest specialty bed retailer, in 2021 for £340 million. Dreams now operates 217 stores and generates roughly £412 million in annual revenue.

Some of you will remember when Reddit briefly convinced itself Mattress Firm was a money-laundering front. The theory was that there were too many Mattress Firms on too many corners doing too little visible business, and the answer had to be illicit cash flowing through the registers. The conspiracy was wrong about the cause but accidentally onto the symptom.

Mattress Firm sued its own former employees and outside real-estate brokers in 2017 for what its court filings called a "massive, multi-year fraud, bribery, and kickback scheme" involving hundreds of store leases dating back to 2010. The defendants (including senior real-estate managers at Mattress Firm and brokers at Colliers International) were running kickbacks from developers and landlords to sign leases regardless of whether the locations made business sense. That's why there were three Mattress Firms on one block.

Layered on top of that, the South African parent company, Steinhoff International, which had bought Mattress Firm in 2016 for $3.8 billion, turned out to be running the largest corporate accounting fraud in South African history. An independent forensic investigation found Steinhoff had recorded $7.4 billion in fictitious transactions between 2009 and 2017, enough that without the fraud the company would have been loss-making across most of that period.

Mattress Firm filed Chapter 11 in October 2018, closed about 700 stores, and emerged from bankruptcy 47 days later. The reason I'm flagging it here is that this is the chain Tempur Sealy just bought. The retailer at the center of the largest vertical mattress merger in American history was, ten years ago, a wholly-owned subsidiary of a multinational accounting fraud whose parent company also presided over a domestic real-estate kickback racket. The chain has cleaned up since. But the fact that the largest mattress retailer in the country has been an asset traded between fraud-adjacent owners for most of the last decade is worth considering before you decide to spend your money with them.

Here's where my own shopping comes back in. I ended up buying a mattress from My Green Mattress, a family-owned operation in Illinois that makes latex hybrid mattresses with GOLS organic latex, GOTS organic cotton and wool, and a 365-night home trial. The company was founded by a guy whose daughter had chemical sensitivities and who couldn't find a mattress that wouldn't off-gas in her bedroom, so he started making them.

The reason I'm telling you about MGM specifically is what happened before I ordered. Their 20-year warranty has a slat-spacing requirement: the bed frame supporting the mattress can't have gaps wider than 3.5 inches between slats, or the warranty is void. I'd already bought a Room & Board Hudson bed frame. It has 14 slats spread across 80 inches. About 4-inch gaps. Over spec.

I called MGM to ask whether I had a problem. The person who answered the phone actually knew the answer. They ran the math on my specific frame, confirmed the gap was over their threshold, and recommended a bunkie board to bridge it. The whole call took maybe fifteen minutes. I bought the bunkie board, ordered the mattress, kept the warranty intact.

Now imagine making that call to whichever third-party warranty service handles Sealy claims. The big-brand mattress warranties typically void for any stain, require a specific approved foundation, and only honor sagging claims past 1.5 inches. The 20-year warranty on a Sealy Posturepedic is a sales tactic, not a warranty.

The mattress industry is not a unique offender. The pattern is everywhere now. Three brand names that look like competitors are owned by one company. The largest retailer in the category is owned by the largest manufacturer. Information is deliberately fragmented, prices are deliberately impossible to compare, warranties are deliberately written to never pay out, and the regulatory bodies that exist to prevent this kind of vertical capture are impotent.

What's specific to mattresses is that the category is so opaque, the purchase is so infrequent, and the product is so universal that the trick scales. Everyone needs one. Almost no one buys one often enough to notice the game changing under them.

If you're in the market right now and want the short version: the brands worth your money are small, independent, and owner-operated. A starting list:

The full mattress section of the Brand Ledger goes deeper, including the brands that look independent but aren't. None of these brands spend money on national TV campaigns or showrooms on every corner. Most of them will tell you over the phone exactly what's in the mattress, who made each component, and what the warranty actually covers. The whole field of "mattresses you've heard of" is, with few exceptions, a list of brands you should be skeptical of.

I've started doing this with every category I touch. Backpacks. Power tools. Eyewear. Now mattresses. Pick a category, pull on the thread of who actually owns the brand, and the same architecture keeps showing up. Private equity rolls up the small American companies that built reputations over decades. Conglomerates buy the manufacturers and then buy the retailers. The brand names persist because the brand names are the most valuable asset. More valuable than the factory, more valuable than the people, more valuable than the product. The product is the thing that gets quietly worse while the brand stays the same.

The whole system depends on a buyer who recognizes the logo and assumes the company behind it hasn't changed. Brand equity is rented credibility from dead founders. Knowing who actually owns what changes what you buy, and what you buy is the only signal these conglomerates respond to. A dollar spent at a small family-owned company is a dollar the conglomerate didn't get. Enough of those and the math of rolling up small companies starts to break.

This is enshittification with a longer time horizon. It's the same thing that happened to your favorite app, except it's been happening to your mattress for forty years and you only notice when the new one sags faster than the old one did.

I'll keep pulling on threads. There are a lot of them.