Re: Weird things we do in our sleep
During non REM sleep, the mind is quiescent and the body is active. During REM sleep, it's the reverse. Somnambulism probably happens during non REM sleep.
Yes, sleepwalking does occur during deep sleep, non REM.
"I don't know half of you half as well as I should like; and I like less than half of you half as well as you deserve."
--Bilbo Baggins, LOTR: Fellowship of the Ring