Sleep is necessary both before and after learning to facilitate the absorption and long-term retention of new memories.

“you not only need to sleep before learning to imprint those memories into the brain you also needs leave after learning to essentially cement those new memories into the neural architecture of the brain so that you don't forget”

Deep N3 sleep and REM sleep are critical phases for cleaning the brain, consolidating memories, and integrating information into coherent schemas.

“if you just eliminate the rim Sleep part you can't consolidate your memories and put them together if you eliminate the Deep SLE slow wave Sleep part the N3 State the cleaning part you will wake up with a junky brain and not be as efficient”