Is a Radar Sleep Monitor Safe? What FCC and ICNIRP Actually Say

This page reports what regulators and studies say. It makes no health claim. It does not say Komori is safe. It lists no Komori emission numbers and no Komori FCC ID.

Disclosure: I am Dovy, founder of Komori Care. Contactless bedside radar for sleep position, coming 2027, wellness only, not FDA-cleared. Komori Lite $399, Komori with base $799. One-press top button cuts sensing. Optional camera records to an encrypted SD card.

Short answer

Consumer radar sleep monitors use low-power, non-ionizing radio waves.

ICNIRP says the only substantiated health effect of RF exposure is heating. Research on sleep quality, headaches and cognition "has not shown any such health effects," with one consistent finding of small EEG changes whose meaning is unclear.

In the US, 60GHz radar sensors operate under FCC Part 15 rules adopted in 2023. Ask any vendor for its FCC ID.

What FCC documents say

The FCC RF Safety FAQ says RF energy is non-ionizing: the energy is "not great enough to cause the ionization of atoms and molecules." At relatively low levels, "the evidence for production of harmful biological effects is ambiguous and unproven." Environmental levels "routinely encountered by the general public are typically far below levels necessary to produce significant heating" (FCC RF Safety FAQ).

On July 24, 2023, the FCC revised Part 15 for unlicensed field disturbance sensors in the 60 GHz band (57-71 GHz). For 57-64 GHz devices, the adopted rules set several EIRP levels with duty-cycle restrictions, including up to 20 dBm peak EIRP in some segments (Federal Register). Those are the rules for the class of device. They are not a rating of any brand.

Look up a device's FCC ID at fcc.gov/oet/ea/fccid.

Hatch's how-it-works page says its sensor uses "a fraction of the energy of your WiFi router" (Hatch). That is Hatch's claim, not a measurement on this page.

A small study in a different band

A 2024 Frontiers Public Health pilot put 12 adults near a 2.45 GHz baby monitor (not 60GHz) and reported NREM EEG changes. The authors call the findings preliminary and ask for larger studies (Frontiers). Different band, small sample, one consumer baby monitor. Don't treat it as a 60GHz sleep-radar result.

Privacy is the bigger practical question

Radar is not a camera. The buying question that actually changes how you live with a device is where the data goes. See privacy-first.

If you are shopping radar you can buy, see Somnofy alternatives and Nest Hub sleep sensing alternatives.

Komori Care (coming 2027)

Komori is contactless bedside radar. Back/side/stomach timeline (design intent). One-press top button cuts sensing. Optional camera records to an encrypted SD card. Designed local-first with optional cloud sync.

This page does not assign Komori an FCC ID, an EIRP figure, or a safety rating.

Komori Lite $399. Komori with base $799. Coming 2027. Wellness only. Join the waitlist.

FAQ

Is 60GHz radar the same as 5G? No. 5G uses several licensed bands. 60GHz is also used by unlicensed short-range devices under FCC Part 15. A bedside sensor is not a cell site.

Is radar safer than Wi-Fi? Don't rank them. Both are non-ionizing RF under exposure limits. Hatch's "fraction of the energy of your WiFi router" line is a vendor claim about Hatch, not a league table.

Can radar see me? It measures reflections, not a photograph. Google's Nest Hub FAQ says Motion Sense does not generate distinguishable images of your body or face. Ask each vendor what its sensor outputs.

How do I check a device's FCC ID? Find the ID on the device or in the manual, then search the FCC ID database.

Should I turn it off? If you want a hardware off switch, Komori's design is a one-press top button that cuts sensing. Other products have their own mute, mic or power switches. Read the vendor page.

Keep reading

• Radar sleep sensing explained
• How 60GHz radar detects position
• Best radar sleep monitor
• Somnofy alternative
• Nest Hub sleep sensing alternative

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Komori Care is a contactless sleep monitor in development — camera-free position tracking, coming 2027. Wellness only, not FDA-cleared. Join the waitlist.