Hey, a great article, congrats. I was looking for something like this. Why you might ask?
Are you familiar will sleep patterns that various wristband gadgets produce? Like this one:
How are, in your opinion, these dark blue (deep sleep) and cyan (light sleep) related to REM and NREM sleep cycles?
Thank you very much for your response.
RE: Things you should know about sleep: Ideal sleep time duration, factors responsible for sleep and some discussion upon sleep quality.