[vldx]

Not the GP -- I've been using Sleep Cycle for exactly 852 nights. It was of immense help developing sleep hygiene. Now I'm waking up before the alarm, which I believe might make more sense if your take an evolutionary perspective. I'm still using the app, as I've wondered if I could do something interesting with this data.

It's unfortunate that Hello are shutting down. I was thinking into buying Sense for my bedroom, despite that I'm using different app, mostly because the aesthetics.

[DanielShir]

Aren't you afraid of radiation at all? I've used this app for a few months, but actually stopped because I didn't like having the device so close to my head for such a long period of time.

[driverdan]

You shouldn't be. It's low power, non-ionizing radiation. It's not going to cause you any harm.

[vldx]

I'm enabling airplane mode ~30 minutes before sleep, which is part of my sleep ritual; no notifications and no radiation.

[Angostura]

If you're worried, engage Airplane mode.