Nap.
A Bed B-E-D ! :)
A word beginning with R for sleep is rest.
sleep
sleep
"Sleep phenomenon" is probably "dream."
coma
dream, snore
pass out how about 'slumber'? im not sure if it refers to a deep kind of sleep, but it has 7 letters and it is sleep :)
sopor
arouse, awaken
night?
sleep, party, snore, drink