WILD dreamers, do I need to actually know my sleep cycle and target one of my REMs? or is a normal WBTB (4-6 hours) sufficient?
ive seen someone on youtube saying that I need to calculate my longest REM cycle then target it, I dont care if its the longest or an average on i just wanna know if this means a normal WBTB isnt enough.
I don't have a smart watch or an ouro ring to calculate