According to Newsarama, one of Dark Horse's final-produced 'Star Wars' tales will be a four-part miniseries entitled 'Darth Maul: Son of Dathomir,' arriving this May and drawing on actual screenplays for what was to be the 'Clone Wars' finale.
These are called rapid eye movement (REM) sleep, and non-rapid eye movement (Non-REM) sleep. In adults, non-REM sleep occupies around 80 percent of the night, and REM sleep 20 percent. However, REM sleep does not occur in one large block. Actually, we go into REM sleep in cycles of around 90 minutes. That is, REM sleep occurs around once every 90 minutes.
Sleep requirements decline from infancy to early adulthood, level off, then decline again in old age. Stage 4 sleep increases in old age. Ten-year-olds are in REM sleep about 1.5-2 hours per night. Stage 4 sleep increases in old age.