Hey buddy, I'm studying psycho and we do study sleep phases, I believe you should drift the "REM state" at the end of the delta waves ( NREM 3) and drop quickly when you meet that range in the beginning of the theta waves, where you did put the REM state. Nice track anyway! Cheers buddy!
I carefully studied sleep patterns before making this track. It starts with REM because I've observed that going to sleep ALWAYS begins with dreaming about random stuff.
Pasta Mista