Thread: REM cycle curiosity

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imagine that is R.E.M

Lets call the first squiggly lines rem1, and the second set of squiggly lines rem2.

If i wake up in the middle of rem1, can i re-enter the same phase? So imagine waking up in rem1, 4 mins later going back to sleep.
How would i feel? Would i be able to enter back into rem1? If so, that means REM Atonia must be triggered too.

Or if i cant enter back into rem1, then would i simply not be able to fall asleep at all?

Assuming rem atonia only happens at start of a rem phase (start of rem1, rem2 (first squiggly symbol) ). I'd have to be really patient waiting for rem2 to turn up.

I'm interested in this because im considering timing in WBTB and its confusing me.
Glad to hear all your thoughts!

EDIT: I think the answer to this question can reveal how long your time in REM will be after you perform WBTB. Things like that.