deep sleep; sound sleep; profound sleep
sleepiness; drowsiness; the sandman; Morpheus
sleeping pill; sleep medication
(one's) sleeping hours; hours of sleep
wink of sleep; snooze; doze; nap
lack of sleep; sleep deprivation
coma; deep sleep; falling fast asleep
sleeping like a log; (being) fast asleep (bombed, crashed)
water lily (any plant of genus Nymphaea); pygmy waterlily (Nymphaea tetragona)
to be extremely sleepy; to be at the brink of falling asleep
hypnopaedia; hypnopedia; sleep-learning
sleep apnea syndrome; SAS
half awake and half asleep
half asleep and half awake
sleepwalking; somnambulism
having sex with a sleeping person
sleep debt; sleep deficit
sleeping sickness; sleeping disease
sleeping while snoring; snoring sleep
short sleeper; person who does not need much sleep
deep slumber (as if under a spell)
circadian rhythm sleep disorder; CRSD
circadian rhythm sleep-wake disorder; CRSWD
inactive bank account (no withdrawals or deposits made, and to which the owner's rights have been terminated)
African sleeping sickness; African trypanosomiasis