Privacy Sleep Monitor: Bedside Radar vs Under-Sheet Mat
Dovy Paukstys
Founder, Komori Care
Privacy Sleep Monitor — Bedside vs Under-Sheet
"Privacy sleep monitor no camera" splits into two contactless form factors: a thin under-sheet / under-mattress mat, or a bedside radar unit. Both can avoid video. They still make different privacy and install tradeoffs. If your question is also "which is better for sleep position," that decision tree narrows the answer further.
Disclosure: I am Dovy, founder of Komori Care (bedside radar, coming 2027, wellness only). Full privacy positioning also lives on /privacy-first.
Quick answer
Privacy sleep monitor — bedside vs under-sheet — pick by job:
- Best under-sheet / under-mattress privacy pick you can buy now: Withings Sleep Analyzer or OZI-class mats — no camera, nothing on your body; pressure sensing through the mattress.
- Best bedside radar privacy pick available sooner: Sleepal AI Lamp — camera-free radar on the nightstand / lamp form factor.
- Best if you refuse mattress installs and cameras, and care about position (wait): Komori Care — above-bed radar design intent; local-first story; Kickstarter Q1 2027.
- Hard no for most privacy buyers: Bedroom cameras (Nanit, SAMi-class video) — technically capable, socially dead for many adults.
Under-sheet / under-mattress privacy profile
Pros: No image sensor; familiar "pad under the bed" mental model; shipping today.
Cons: Someone has to lift the mattress; the pad sits in the bed stack; multi-person crosstalk; usually weak true position classification; app/cloud policies still matter — "no camera" ≠ "no cloud."
Bedside radar privacy profile
Pros: Nothing under the sheet; no video by physics at consumer chip budgets; can support presence/movement/position stories without pointing a lens at anyone.
Cons: RF in the bedroom needs a clear explanation; dual-person radar is harder; ship dates vary (Sleepal sooner; Komori 2027); still verify what audio features are stored (Komori: features by default, raw audio not kept unless you ask).
Quick comparison
| Dimension | Under-sheet mat | Bedside radar |
|---|---|---|
| Camera? | No | No |
| Mattress install | Yes | No |
| Position (back/side/stomach) | Usually weak | Radar form factor for it |
| Stages / HR | Strong (Withings, OZI) | Varies by device |
| Buy now | Withings / OZI | Sleepal (check access) |
| Komori | N/A | Coming 2027 |
Decision tree: position vs stages
If your job is sleep stages / HR / breathing tonight:
- Under-mattress mat wins — Withings, OZI ship now with strong stages/HR story; app ecosystems mature; no camera.
- Privacy concern: No image sensor, but verify cloud policies — "no camera" ≠ "no cloud."
If your job is sleep position (back/side/stomach) through blankets:
- Bedside radar wins — mat pressure sensors usually cannot classify orientation reliably; radar form factor is built for geometry.
- Buy-sooner bedside: Sleepal (check availability).
- Position-first Night Review (wait): Komori (coming 2027) — position timeline design intent, local-first, no camera.
Privacy ladder by install and data flow:
- Most install friction, no camera: Under-mattress mat — lift mattress, install pad, verify cloud policy.
- No install friction, no camera: Bedside radar — nightstand placement, no mattress touch; still verify what audio features are stored (Komori: features by default, raw audio not kept unless you ask).
- Hard no for most privacy buyers: Bedroom cameras (Nanit, SAMi-class video) — technically capable, socially dead for many adults.
More on the privacy page: /privacy-first and privacy comparison.
Wellness boundary
Komori is general wellness, not FDA-cleared, not seizure detection (disclaimer). No privacy sensor replaces medical monitoring when a clinician says you need it.
FAQ / Quick Answers
- Best privacy sleep monitor no camera? Mats for buy-now under-sheet; bedside radar when you refuse mattress installs; never assume "contactless" means local-only — read the vendor's data flow.
- Under mattress sleep tracker vs bedside radar — which is better for sleep position? Bedside radar wins for position (back/side/stomach); under-mattress mats win for stages/HR but usually weak on true orientation classification.
- Bedside vs under-sheet? Install and position needs decide more than branding.
- Is Komori camera-free? Yes by design — radar, not video; coming 2027.
CTA
Buy-now under-sheet → Withings/OZI. Bedside position-first privacy → Komori waitlist.
Komori Care is a contactless sleep monitor in development — radar + ambient + on-device audio, no wearable, no camera. Kickstarter launching Q1 2027. Join the waitlist to get notified when we ship.
Keep reading
- Privacy-first landing — exact "privacy sleep monitor no camera" page.
- Sleep monitor without a camera — tradeoffs vs video.
- Best under-mattress sleep tracker — sleep mat shelf.
- Best radar sleep monitor — Kardian / Sleepal / Komori.
- Night Shift alternative (logging only) — therapy vs logging.
You can choose a position at lights-out. Knowing what you held until morning is the hard part.
Komori is a contactless monitor that logs which position you slept in, through blankets, with no camera and nothing to wear. Pre-launch — join the list and we'll tell you when it ships.
Keep reading
Want to see your sleep position data?
Join the free waitlist for launch updates. Or lock in founder pricing with the Insider Pass ($49, credited toward your purchase).