It stays on for me (medium to large size head, or so I think) -- tends to ride up on my forehead a bit over time but never had it fall off. It's got some adjustments that can be made to tighten/loosen the fit, on top of which there is some elastic in part of the band.
What (if anything) will it do in the absence of their service? Is there any open source software/open protocols/etc... for it?
After being burned a few times, I've resolved to make hardware purchasing decisions based only on what a device can do using built-in/self-hosted software without any external services...but vendors make this difficult or impossible to figure out from the marketing glossies.
I don't believe it would function at all without their online services, it actually connects directly to wifi so it's definitely doing something important through that. I haven't looked into it but I bet everything is proprietary all the way up the stack.
And honestly that's fine for me. I don't plan on using this forever, I mainly got it since it is far cheaper than going through an actual therapist to do CBT for insomnia, so I figured I'd try this first.
Another thing to consider: It's definitely a wear item. It's got a fabric construction on the outside that seems to me like it will collect body oil + dirt/grime and it can't easily be cleaned. On the whole it feels kind of delicate. To be fair though, I don't know if it's possible to make a long lasting eeg based sleep tracker that's also comfortable to wear.
I've had more and more trouble sleeping as I age, and in the past 2 years it's gotten way worse. I've tried all manner of things and had put off getting the dreem for a while since it was so expensive. I've been to the doctor who sent me for blood tests and also referred me to a urologist, but everything came back normal.
My specific issue: I get up in the night to urinate consistently at least 1-2 times per night, and then usually have a very difficult time getting back to sleep -- since my body seems to think it's time to wake up at that point, and starts thinking about literally everything. I'm a fairly anxious person by nature as well, which doesn't help my situation.
It seems as though there's a vicious cycle that I don't know how to deal with well, where I have a bad night of sleep, then try to go to bed early the next night, but it doesn't seem to help, and it messes up my sleep schedule a lot, which leads to even more problems.
I'm in the middle of what dreem calls their "sleep restructuring program", which is based on CBTI. What it's having me do right now is basically restrict my sleep to a short 6 hour and 45 minute window, with emphasis on a consistent wake time. The idea is to focus on increasing sleep efficiency -- basically time asleep divided by time in bed. As you increase sleep efficiency it gradually widens the sleep window.
In addition it's having me form other habits around night time awakenings like not staying in bed if I can't get back to sleep to short circuit the association between wakefulness and being in bed.
I can't say whether it's helped for sure yet (my sleep efficiency has gone up in the past 2 weeks from 70ish percent to mid eighties), but even with the reduced time in bed I do seem to have about the same energy as I did when spending much more time in bed.
It stays on for me (medium to large size head, or so I think) -- tends to ride up on my forehead a bit over time but never had it fall off. It's got some adjustments that can be made to tighten/loosen the fit, on top of which there is some elastic in part of the band.