If you're one of the millions who squints at a sleep score first thing in the morning before you've even peed, you might want to sit down for this. That number on your wrist? It's a bit of an optimist. Fresh research out of a sleep clinic has quantified something a lot of us already half-suspected: the little device tracking your night is rounding things up in your favor.

None of this is a reason to torch your wearable in the backyard. But it does change how much weight you should put on any given morning's readout — especially if you've been using it to decide whether you're allowed to feel tired today.

What the researchers actually did

The study followed 107 patients at a sleep clinic across eight nights. Each participant wore a research-grade actigraphy device — the kind that measures movement to infer sleep — while simultaneously being hooked up to polysomnography. That's the full clinical setup: brain-wave sensors, breathing monitors, eye-movement tracking. It's the gold standard for knowing, second by second, whether a person is asleep or awake.

Then the researchers compared what the wearable said versus what the lab equipment recorded. The results were a mixed bag. Total sleep time? The tracker got that fairly close. But the finer-grained stuff — the fragmentation, the restless middle-of-the-night patches — was where the wearable started drifting from reality.

On average, the device overshot total sleep time by about 27 minutes and inflated sleep efficiency (the share of time in bed you're actually unconscious) by roughly 6%. It also underestimated time spent awake by about a quarter of an hour. In other words: the tracker is inclined to give you a passing grade even on nights that maybe didn't earn one.

Why do trackers get it wrong?

Consumer wearables are, at their core, movement detectors with some clever math bolted on. When you're lying still, the algorithm's default guess is that you're asleep. This works reasonably well most of the time — humans do tend to be still while sleeping. But it breaks down in the places sleep gets interesting.

If you're lying in bed awake but not moving much — staring at the ceiling at 3 a.m., say, cycling through every awkward thing you said in high school — the device may quietly log that as sleep. Conversely, brief micro-arousals that the polysomnograph catches through brain-wave changes are invisible to a wrist sensor. The tracker sees stillness and calls it a win.

Several other factors muddied the numbers in this study. Age mattered — accuracy shifted as participants got older. Periodic limb movements, where the legs twitch or jerk involuntarily during the night, threw the readings off. And the environment played its own role: results looked different when someone slept in the unfamiliar clinic versus their own bed. That last part isn't really the tracker's fault. A hotel night simply isn't the same animal as a Tuesday at home.

Should you throw out your wearable?

No. Or at least, not because of this. Sleep trackers are still useful — provided you know what they're good at and what they're not. The mistake is treating a nightly score as a verdict. It's a rough estimate produced by a wristband, not a medical diagnosis handed down by a clinician.

Here's how to actually get value out of the thing:

• Watch the trend, not the night. One weird score means almost nothing. Ate late, had a glass of wine, slept in a strange room, the cat sat on your chest — a hundred things can wobble a single night. What matters is the two-week pattern. Is your bedtime creeping later? Is your total time in bed shrinking? That's the signal.
• Don't play doctor with the data. Fragmented sleep readings and low efficiency scores are exactly where these devices are least reliable. If your tracker says you woke up 14 times, that's not a diagnosis of a sleep disorder. It's a movement-based guess.
• Take real symptoms to a real specialist. If you're exhausted despite decent numbers, or you suspect something like sleep apnea or restless legs, book an actual sleep evaluation. A wearable can't tell you what a polysomnograph can.
• Use it as a nudge. The best thing a tracker does is prompt small behavioral shifts — an earlier wind-down, less screen time before bed, cutting off coffee at noon instead of 4 p.m. Treat the data as a coach, not a judge.

The bigger question: why are we tracking sleep at all?

Somewhere along the way, sleep got gamified. We started chasing scores the way we once chased step counts. And while there's genuine value in paying attention to rest — most adults are chronically underslept and would benefit from taking it seriously — there's also a strange irony in getting anxious about a metric that's supposed to help us relax.

There's even a term for it now: orthosomnia, the obsessive pursuit of perfect sleep as measured by a device. Clinicians have watched patients arrive with piles of tracker data, convinced something is wrong, when the actual problem is that they're stressing themselves awake trying to hit a target. If your relationship with your wearable is making you sleep worse, that's worth noticing.

The healthier framing, honestly, is to use sleep data the way you might use a bathroom scale — occasional check-ins for trend awareness, not daily rituals loaded with emotional weight. Your body already knows if it's rested. Most of the time you can feel it before you even glance at the screen.

Where plant medicine and rest quietly intersect

This might seem like a detour, but it isn't. A lot of people who end up looking into ayahuasca, psilocybin, or other plant-medicine retreats first notice something is off through sleep. Persistent insomnia, dread of nighttime, dreams that feel more like unresolved static than actual dreaming — these are often surface signals of trauma, depression, or nervous-system dysregulation that hasn't found another outlet.

Participants at retreats frequently report shifts in their sleep afterward, sometimes dramatic ones. That's not a promise — outcomes vary, and integration work matters more than the ceremony itself — but it's a pattern worth mentioning. The point isn't that a psychedelic experience will fix your sleep score. It's that chronic poor sleep is often a symptom of something a wearable was never designed to measure, and no algorithm is going to surface that for you.

If you're the kind of person who reads sleep studies at midnight because rest has become a problem you can't crack, it may be worth asking what's actually underneath the exhaustion. Sometimes it's caffeine and screens. Sometimes it's grief or unresolved trauma that your body has been carrying for a decade. Very different problems, very different solutions.

What to actually do tomorrow morning

Glance at your score. Notice it. Then move on with your day. If you slept badly and know it, honor that — go easier, hydrate, maybe skip the second espresso. If the tracker says you slept great but you feel like roadkill, believe your body over the algorithm. That mismatch itself is information.

The device is a tool. It's not a report card, and it's certainly not a doctor. The best sleepers I know barely think about their scores at all — they've built routines that make good sleep the default, and the wearable is just there confirming what they can already feel.

For readers whose insomnia or restlessness feels connected to something deeper — old trauma, addiction patterns, depression that hasn't lifted — a growing number of plant-medicine and psychedelic-assisted retreats can be explored on our marketplace here. Sleep, in the end, is a downstream signal. Fix what's upstream and the numbers tend to sort themselves out.