Originally Posted by
gab
Great info in all these posts here. But if I may, I'm just gonna add something.
REM rebound happens after some sleep deprivation. It happens because when we lose sleep, we lose both NREM and REM cycles. But our body deems REM more important than NREM. So when we finally go to sleep, our body throws us almost immediatelly into REM, skipping NREM, thinking it better catches up on what we missed, in case we will lack sleep again.
So only REM rebound happens, not both REM and NREM.
But I couldn't tell you how long of a sleep deprivation is ideal to get a REM rebound, before it becomes too long. When it becomes too long, next sleep will be not REM, but deep NREM sleep, since by then our body needs that over REM.
If you want hassle free REM, take a morning, noon or early afternoon nap. Those usually start almost immediatelly in REM. Ideal for WILDing, but also DILDing.
Good luck and happy dreams.