Do sleep cycle apps really work?

>>57815618
bump

what does "work" mean in this context?

>>57815738
Regardless of whether they improve your health, I'm interested if they do produce accurate data of my sleep patterns.

Yes. I've been using one for the last 2 years.

The sleep cycles are real. Every single time my phone wakes me I feel completely rejuvenated.

The few tests something else has woken me up a few minutes earlier, like a family member that wakes me during deep sleep, I wake up completely dysfunctional, brain is a mess and I can't focus for the next 10 to 15th minutes.

Placebo is one thing, but I actually notice the effects very well.

The few times *

>>57815778
Can confirm I have similar results with my sleep cycle app.

>>57815754
Buy a miband 1S or similar cheap tracker to track your sleep, those are more accurate