Sleep Obsession Backfires: Trackers Fueling 'Orthosomnia' Epidemic

The bedroom has become a laboratory, and the night a series of metrics to be optimized. Sleep trackers—wristbands and smart rings that promise to decode your rest—have transformed what was once a simple biological need into a quantified pursuit. But doctors are now seeing patients arrive at their offices with printouts of sleep data, convinced something is wrong, when the real problem may be the devices themselves.

The obsession with perfect sleep has a name: orthosomnia. It's not yet formally recognized as a clinical condition in the UK, but sleep specialists report encountering it regularly in their practices. Patients come in anxious, armed with overnight readings showing their sleep stages broken down into light, deep, and REM phases, along with a numerical "sleep score." Many have already been tested and found to have no actual sleep disorder. The anxiety itself, though, has become the disorder.

The first commercial sleep tracker appeared in 2009 with the Fitbit Classic. Since then, the market has exploded. Garmin, Whoop, Apple, and companies like Oura and Ultrahuman now embed sleep analysis into devices worn on the wrist or finger. They all promise similar things: a detailed breakdown of your night and a score that supposedly tells you how well you slept. But according to Dr. Alanna Hare, a sleep medicine consultant at the Royal Brompton Hospital in London, these scores are fundamentally fabricated. "There's nothing recognised in sleep science that is a 'sleep score'," she says. "That's just been created by manufacturers." The scores exist not because they measure anything real, but because they sell devices. Hare has watched the anxiety ripple through her patient population. People arrive with questions rooted in tracker data, their worry itself becoming a barrier to rest. Even when medical tests come back normal, the reassurance doesn't stick. The tracker has planted a seed of doubt that won't be uprooted.

The damage extends beyond the consulting room. A study from the University of Oxford demonstrated something unsettling: researchers gave participants sleep trackers that assigned them scores—but the scores were completely random, disconnected from how the participants had actually slept. The next day, those told they'd slept poorly reported feeling more fatigued and less mentally alert. Their focus and reaction times suffered. The fake data had altered their actual functioning. The mind, it turns out, is vulnerable to suggestion, even when the suggestion comes from a device.

Jess Hill, a 32-year-old HR professional from London, lived this cycle for three years after buying a Garmin watch. She began treating the device as an oracle, a final arbiter of whether her night had been good or bad. If the watch said she'd slept well, she pushed herself hard the next day, regardless of how her body felt. If it said poorly, she resigned herself to struggle. The watch became her Bible. Then one night, she was awake from 1 a.m. to 5 a.m.—four solid hours of wakefulness. The next morning, the watch announced: excellent sleep. The contradiction was too stark to ignore. She began to question whether the device had ever been right.

Dr. Neil Stanley, a sleep expert and author, traces the problem to the act of quantification itself. When you assign a number to sleep, you create a target. Targets breed anxiety. Targets create the very thing they're meant to prevent. Stanley conducted research into wrist-worn trackers decades ago and has watched the technology evolve. The devices are more sophisticated now, but they still work the same way—by measuring movement—and they still carry the same fundamental limitation. "If you want to measure sleep, you have to measure the brain," he says. "Unless you're measuring the brain's activities, you're not measuring sleep." A wristband cannot do this. It can only guess.

One lawsuit filed against Oura in San Francisco last month alleged that the company's rings cannot accurately measure sleep quality or stages, and that their estimates have "a coin flip's chance of being correct." Oura responded that it stands behind its science and is committed to clear communication about what it measures and what it estimates. The company did not address the core claim: that the technology is fundamentally unreliable.

So what actually works? Dr. Hare's recommendations are almost mundane in their simplicity. Keep your bedroom cool, dark, and quiet—though not obsessively so. Pitch black is unnecessary; 16 degrees Celsius exactly is unnecessary; total silence is unnecessary. Coolish, darkish, quietish will do. Get bright light in the morning to regulate your circadian rhythm. Exercise lightly. Eat well, Mediterranean-style, with plenty of plants. And then stop. Anything beyond this, she says, you don't need. The secret to good sleep, it turns out, is to stop trying so hard to sleep well.