Sleep Tracker If You Can't Wear a Ring or Watch to Bed (2026)
Dovy Paukstys
Founder, Komori Care
Some people will not sleep in a ring or a watch. Skin, swelling, sensory load, or they just take it off. That is a product constraint, not a personality flaw.
Disclosure: I am Dovy, founder of Komori Care. We are building a contactless bedside sleep monitor, coming 2027, wellness only.
Quick answer
- A PMC review of home sleep monitoring says under-mattress and smart-mattress systems suit people who find wearables uncomfortable, with the tradeoff that co-sleepers can muddy the data.
- Under the sheet: OZI, $199 as listed on ozisleep.com in October 2026, nothing worn, no camera or mic, no subscription. Under the mattress: Withings Sleep Analyzer, $199.95 as listed in October 2026. Bedside: Hatch Sleep Clock or Sleepal AI Lamp.
- Free option: a phone app on the nightstand. Position timeline with nothing on your skin, if you can wait: Komori Care (2027).
If the Garmin armband is the thing you already tried, see Garmin Index Sleep Monitor alternatives. For what radar actually measures, see how accurate radar sleep trackers are.
Want a follow-up on this topic? Get a note when Komori launches (2027)
One email when the contactless monitor ships, plus the occasional short follow-up on this topic. No spam, leave any time.
Why people take the wearable off
Comfort. A mark on the finger. A wrist that swells at night. Sensory sensitivity. Or they do not want another thing to charge. Keep it kind. None of that is a diagnosis.
What you lose: daytime steps, 24-hour heart-rate trends, and a clean per-person log if two people share the bed. Wearables are boring that way. They only see the person wearing them.
Mats and strips
OZI sits under the sheet. Withings slides under the mattress and says it focuses on the person above the pad. The PMC review notes shared beds introduce measurement errors for mattress systems.
Bedside radar
Hatch Sleep Clock and Sleepal AI Lamp sit on the nightstand. Nothing on your skin. You still pair an app. We could not open Sleepal's CES post, so we are not repeating any sensory-marketing line from that page.
Phone on the nightstand
OpenSleep and onSleep need no wearable. You still put a phone nearby. Stages on OpenSleep are phone estimates. onSleep stages need a watch in Health if you want them.
Komori Care (coming 2027)
Komori Care puts nothing on your body: 60GHz radar above or beside the bed, no camera required, back, side and stomach timeline planned. Coming in 2027, wellness only.
FAQ
Why do some people not sleep in a ring or watch? Comfort, skin, sensory sensitivity, swelling. Or they hate it. All valid.
What do I lose without a wearable? Daytime data and easy per-person tracking. Say so up front.
Do non-wearables track heart rate? Some mats do. Radar in the aging lab we cite measured breathing, not heart rate. See how accurate radar sleep trackers are.
What if only the watch is the problem? A ring or band might still work. See Oura alternatives without a wearable if the ring is also out.
Does Komori Care touch my skin? No. Nothing to wear.
Keep reading
- Garmin Index Sleep Monitor alternative
- How accurate are radar sleep trackers?
- Best sleep tracker without a wearable
- Oura alternative without a wearable
- Why wearables miss sleep position
- Nothing to wear, nothing under the sheet
Komori Care is a contactless sleep monitor in development. Camera-free position tracking, coming 2027. Wellness only. Join the waitlist.
Want a follow-up on this topic? Get a note when Komori launches (2027)
One email when the contactless monitor ships, plus the occasional short follow-up on this topic. No spam, leave any time.
Keep reading
Want to see your sleep position data?
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