How long does REM sleep last?
Asked by Aethelflaed (13737 ) November 18th, 2011
How long does REM sleep last? 2 hours? Usually not more than 4 minutes?
Does that length change if the creature having REM sleep is not a human, but a cat?
Observing members: 0 Composing members: 0
Wow! You've got 847 knowledge matches!Want to see them? Join Fluther!