See Also: sleep-out(dictionary)
sleep-in(dictionary)
sleep(1)(dictionary)
sleep(encyclopedia)
REM sleep(dictionary)
Sleep(medicine)
sleep, rem(medicine)
sleep(2)(dictionary)
twilight sleep(medicine)
winter sleep(medicine)

REM sleep (oh)



[Date: 1900-2000; Origin: rapid eye movement]
rapid eye movement sleep a period during sleep when your eyes move quickly, when you are dreaming