Sleep Used to Be Free. Now There’s an Industry Selling It Back to Us
Sleep has never been entirely free of commerce. People have been buying mattresses, sleeping pills and blackout curtains for generations. What is new is not the presence of a market around sleep. It is the attempt to measure it, optimize it, personalize it and monetize it continuously, night after night, through a device you wear or sleep on.
Grand View Research, one of the more closely followed firms tracking this space, put the global sleep tracking devices market at just over twenty-six billion dollars in 2023 and projects it will reach roughly fifty-eight billion by 2030. Other analysts define the category more broadly and land on somewhat different numbers, but the direction and pace of growth are consistent across nearly every estimate. None of those numbers include mattresses, supplements, sleep clinics, hospitality packages or coaching apps, which run as their own, separately sized markets. Once you add those in, sleep has become one of the more crowded corners of the consumer health economy, and a genuinely new kind of business has formed around a function the body used to handle on its own.
This is the story of how that business works, what it is actually selling at each stage, and why an industry this large has very little reason to make the problem it profits from disappear completely.
The economy took your sleep before it offered to sell it back
Start with the part of the story the industry rarely leads with. Long before there was a market for fixing sleep, there was an economy quietly eroding it. Round the clock delivery, night shifts, global customer service, long commutes and entertainment that never switches off have all pushed bedtimes later and made rest more interrupted. A phone within arm’s reach adds a steady stream of notifications that a bedroom never had to contend with a generation ago. Public health bodies in the United States have reported for years that roughly a third of adults do not get enough sleep on a regular basis, a number that predates most of the products now marketed to fix it.
Climate has added its own pressure, and the effect has been measured directly rather than just observed anecdotally. A 2022 study published in the journal One Earth linked more than seven million nights of wearable sleep data from over 47,000 people across 68 countries to local weather records, and found that sleep declined by roughly 14 minutes on nights above 30 degrees Celsius compared with cooler nights, primarily because heat delays the point at which people fall asleep. The same researchers found the effect was nearly three times larger for people in lower-income countries than in wealthier ones, and projected that by the end of the century, warming on its current path could erode 50 to 58 hours of sleep per person, per year. None of this was engineered by any single company. But it created exactly the kind of widespread, unevenly distributed discomfort that a market is very good at stepping into.
Sleep stopped being something you did and became something you had to earn
Once rest becomes scarce, it also becomes valuable, and value tends to attract optimization. This is where “sleepmaxxing” comes from, the online trend that treats a night’s rest the way a training plan treats a race, with routines, rules and a running scorecard of habits, supplements and gadgets. It is not a fringe habit. A 2025 survey from the American Academy of Sleep Medicine found that 56 percent of American adults had tried a sleep trend they picked up on social media. Sleepmaxxing did not create the commercialization of sleep on its own. It reinforced a shift that was already underway, in which the wellness economy took a function the body used to manage automatically and turned it into a discipline you could practice well or badly, one that you could fail at, and therefore one worth paying to get right.
Technology made sleep measurable, and measurable things get monetized
Smartwatches, rings, fitness bands and under-mattress sensors now estimate how long you slept, how much of that was deep or REM sleep, and how “ready” your body supposedly is for the day ahead. It is worth being precise about what these devices actually do. Consumer trackers estimate sleep stages from movement, heart rate and similar signals. They do not measure brain activity directly the way a clinical sleep study does, and researchers who study them, including Harvard sleep scientist Rebecca Robbins, have found in published reviews of the technology that they are more reliable for spotting trends over time than for pinning down an exact number on any single night. Robbins has also worked as a paid advisor to one of the wearable makers whose products her research has evaluated, a common arrangement in this field and one worth knowing when weighing how much independence to grant any single study of tracker accuracy.
That distinction rarely comes through in the marketing, and the marketing works. Wearables lead the category by a wide margin. A 2025 analysis from the research firm Mordor Intelligence put their share of device revenue at roughly sixty-five percent, and the reason is not the hardware. It is the subscription that comes with it, and the data that subscription generates. That data typically leaves your wrist and becomes part of a broader profile alongside heart rate, temperature and activity levels, stored on a company’s servers rather than in a clinical file. The value of that data is real even when no single sale of it ever takes place. It trains the algorithms behind next year’s product, feeds the personalization that keeps a subscriber paying, and builds the kind of biometric dataset that has commercial worth to the company that holds it, whether or not that company ever hands it to anyone else.
The Equinox Hotels “Sleep Lab” room makes this arrangement unusually explicit. Guests who book it sleep on an Eight Sleep mattress that collects heart rate, heart rate variability, breathing rate, sleep stages and sleep timing for the night, data that belongs to Eight Sleep and is governed by Eight Sleep’s own privacy policy rather than the hotel’s. A traveler paying $1,700 or more for a night of optimized rest is, in the same transaction, generating a biometric record that outlives the stay.
The device built to calm your sleep anxiety can also cause it
The strangest part of this story is that some of the same tools sold to ease sleep worry have produced a clinical version of it. In 2017, researchers at Rush University and Northwestern coined the term orthosomnia after treating patients who had grown so fixated on their tracker’s nightly score that the fixation itself was interfering with their sleep. One patient blamed every tired day on his device’s readout even when he otherwise felt fine. Another trusted her wearable’s numbers over the results of an actual clinical sleep study.
A 2025 survey of British adults by the insurer Aviva puts numbers to how common that pattern has become among people who track their sleep. Of those surveyed, 41 percent used a wearable device to monitor their sleep, and among that group, 30 percent said they had become obsessed with hitting their sleep targets and 39 percent admitted to feeling anxious after a poor score. Orthosomnia is still not a formal diagnosis, and researchers continue to study exactly how widespread it is. But the pattern is consistent and now well documented at scale. A device promises to remove the guesswork from sleep, and for a substantial share of its users, it replaces that guesswork with a new number to obsess over, checked first thing in the morning, sometimes before a person has worked out how they actually feel. A tool built to solve a problem has, for a large slice of its most engaged customers, become part of the problem.
That anxiety is not the norm for most trackers users, but it is not a rare edge case either. A separate 2026 study out of the University of Bergen, which surveyed more than a thousand adults about their sleep app habits, put a lower but still meaningful number on the same effect. Positive effects were reported more often than negative ones: 48 percent of users said the apps helped them learn more about their sleep, and 15 percent said the apps actually improved it. But 17 percent said the apps made them worry more about their sleep, the most commonly reported downside in the study, and the researchers found that people with insomnia symptoms were especially likely to report that kind of negative effect. Actual reported sleep decline was rare, just 2.3 percent, which suggests the harm here runs mostly through anxiety rather than through sleep quality itself. Aviva’s UK figures and Bergen’s Norwegian ones land at different rates, 39 percent against 17 percent, but they point at the same underlying pattern: a meaningful minority of users get worse sleep-related anxiety from a tool built to reduce it, even when the device is doing nothing to their actual sleep.
An entire industry has grown up around selling the fix
Once sleep is scarce, measured and a source of anxiety, an industry has three separate openings to sell into, and it has built products for all three.
The bedroom itself has become the first opening. Smart mattresses that adjust firmness and temperature, connected air purifiers, automated blinds and circadian lighting have turned sleeping spaces into small networks of devices, and the hardware increasingly comes with a second, ongoing charge layered on top of it. Eight Sleep’s own Pod system is a clear example. The temperature-adjusting mattress cover is a one-time purchase, but the software that actually drives it, called Autopilot, is sold separately as a membership running roughly two hundred to four hundred dollars a year depending on the tier. A mattress used to be a purchase you made once and forgot about for a decade. A connected bed now often comes with a second bill attached to it indefinitely.
The industry has not settled on that model so much as split over it. Sleepme, which makes the competing Chilipad cooling system, spent years charging its own monthly fee for sleep tracking features before dropping the requirement entirely in 2025, after users pushed back, and now markets a one-time purchase with no ongoing bill as a selling point against rivals like Eight Sleep. The subscription is not an inevitable feature of a connected mattress. It is a business choice some companies are making and others are actively competing against.
Supplements are the second opening. FMI’s melatonin products market report puts the global figure at roughly two point three billion dollars in 2025, projecting it will grow to nearly nine billion by 2035, driven largely by gummies and flavored formats aimed at people who would never have taken a sleeping pill. Magnesium, ashwagandha and branded “sleep stacks” have followed a similar path, sold less as medicine than as a nightly ritual, often through the same influencers who built a following on skincare or fitness content. Much of this sits in a regulatory gray zone, since supplements do not face the same approval process as pharmaceuticals, which leaves a real gap between what gets marketed and what has actually been proven.
Diagnosis and treatment form the third opening. Sleep clinics, home testing kits and digital insomnia programs sit at the more medical end of the same market, catching the people who never found relief in a wearable or a gummy and are now willing to pay for something closer to an actual answer.
At the top of the market, sleep has become something you can buy your way into
The clearest sign that sleep has become a luxury good is what the top of the hospitality industry now charges for it. The Equinox Sleep Lab, developed with input from Matthew Walker, the sleep scientist who spent seventeen years at UC Berkeley before joining the University of Texas at Dallas’s Center for BrainHealth in 2026 to lead its Sleep Innovation Laboratories, starts at $1,700 a night with a two-night minimum and is built entirely around the biology of rest. Hilton’s 2025 Trends Report puts a number on the broader pattern behind that room, finding that 70 percent of luxury travelers now choose hotels specifically for their sleep-centric amenities, and that more than one in four travelers book a spa or wellness treatment aimed at improving their sleep. Sleep has become something hotels compete on the way they once competed on pools or breakfast buffets.
A smaller trend has attached itself to this market and turned into its own line item. The same global report found that 63 percent of travelers worldwide say they sleep better alone, a separate, UK-only release from Hilton put the equivalent figure for British travelers at 59 percent, and hotels have responded by pricing and marketing connecting rooms and twin bed suites around that preference, sometimes called a sleep divorce in coverage of the trend. It is a minor piece of the story, but it follows the same logic as the rest of it. A private preference becomes a booking category the moment enough people are willing to pay for it.
What none of this is, is evenly available. A soundproofed bedroom, air conditioning through a heatwave, a schedule that does not depend on a night shift, and the money for a smart mattress or a $1,700-a-night hotel room are distributed very unevenly. A well paid professional with a flexible schedule can buy a quiet, cool, tracked, supplemented, occasionally five star version of sleep. A shift worker sleeping through daylight hours in a shared, un-air-conditioned apartment is dealing with nearly every disruption this article has described and can afford almost none of the products sold to fix them. Sleep quality was never distributed equally. What has changed is that a widening set of tools now exists to buy your way toward better rest, which makes the gap between those two people more visible, and arguably more consequential, than it used to be.
Following the money shows what kind of industry this actually is
Trace, as an illustration rather than a literal transaction, how a single sleep problem gets monetized as it moves through the system this piece has already walked through. The Eight Sleep Pod is sold once, as hardware. The Autopilot membership that makes it worth having is sold every year, on top of that. A bottle of melatonin gummies, part of a market on track to nearly quadruple by 2035, is sold every time it runs out. The Equinox Sleep Lab is sold every trip, starting at $1,700 a night. And the biometric data each of those transactions generates, the heart rate, the HRV, the breathing rate, the sleep stage, keeps working quietly in the background regardless of what else was purchased, refining the algorithms, sharpening the personalization, and building a more valuable picture of the customer with every night recorded. Clinics and pharmaceutical companies sit downstream of the whole chain, ready to treat what the rest of the industry could not fix.
What that chain reveals is that this industry is not really selling sleep. It is selling access to every stage around sleep: measurement, reassurance, ritual, treatment and, increasingly, an experience you can book. A one time purchase became a subscription. A subscription became a consumable you repurchase every month. A consumable became a service you book by the night. Each step adds a new recurring charge to a function the body used to handle for free.
None of this means the products are worthless. Sleep genuinely has gotten harder to come by for a lot of people, mattresses do wear out, insomnia is a real medical condition, and, as the Bergen research cited earlier found, most trackers users report neither worse sleep nor meaningfully increased anxiety from the apps they use. But it is worth being honest about the size and shape of what has been built here. A market this large, sustained by an ongoing and widely shared problem, has very little commercial reason to make that problem disappear completely.
The question worth sitting with is not whether any single product in this chain works. It is whether an entire industry now depends on people never quite trusting their own bodies to know, on their own, when they have had enough rest.
