Sleep study or the dreem 2 headband will tell you. Source: about 1 year ago

There was a device called the Dreem headband that used EEG and bone conduction earphones to play special tones at specific points of your sleep cycle, the goal being to extend the REM segments. Unfortunately that function was software limited to the EU market for whatever reason and then they stopped selling it to the public. I almost got one before they did but I couldn't guarantee that I would have that... - Source: Hacker News / over 1 year ago

I use a sleep helmet , one of These which connects via Bluetooth. On my previous OnePlus phones this has never been an issue, I have to disable location to get it to bind quickly, but apart from that it has always "just worked" with the 7Pro, it connects, downloads data and then disconnects so quickly that if I do not immediately start a session, I have to pair it again & start from scratch. Source: over 1 year ago

One thing that might help with the monitoring aspect is the dreem headband at https://dreem.com/ This might give you nightly data on which you can experiment continuously It measures your sleep via reusable eeg electrodes on a device thats connected to an app I got it a couple years ago I think for 600 USD. I think now it may be geared towards clinical trials though, at least in the USA, so you may have to contact... - Source: Hacker News / almost 2 years ago

If you want sleep tracking, you can use Muse S [0]. You can stream EEG readings in real-time using [1]. However it's really, really hard to get _useful_ data about one's sleep. The results computed by Muse are garbage. The only successful product I know is Dreem [2] but they've exited the consumer market. At the moment, I think the easiest way is to get an ECG (yep, for the heart, not the head) and process the... - Source: Hacker News / over 2 years ago

The analog I’ve seen posted around online is https://keyoxide.org/. - Source: Hacker News / 5 months ago

Keyoxide may be worth checking out as a FOSS alternative: https://keyoxide.org/. - Source: Hacker News / 9 months ago

It's not exactly what you're saying but https://keyoxide.org/ Is all the best ideas of keybase. Basically if you trust someone has control over multiple different accounts you can also trust their pgp key. - Source: Hacker News / about 1 year ago

How is keybase holding up after the takeover? I bumped into https://keyoxide.org and since I'm not interested in the chat parts, keeping an eye on that. - Source: Hacker News / about 1 year ago

About 7, if you're thinking about proving to other users that your display name is your legal name, I have not seen this in Matrix itself. Of course, server administrators may require an identity verification to let you register an account (e.g. university, governement), but that's handled by them, not Matrix. For the wider web, although it's not what you asked ofr, you can look into third-party identity... Source: about 1 year ago