sleeping pill; sleep medication
(one's) sleeping hours; hours of sleep
sound sleep; good sleep; quiet sleep
hibernation; winter sleep; brumation; torpor
lack of sleep; sleep deprivation
dormancy; quiescence; diapause
to take a nap; to catch forty winks; to catch some Z's
no sleep or rest; working day and night
sleeplessness; insomnia; wakefulness
nap room (in an office, fire station, etc.)
to sleep all day; to idle away one's time; to loaf all day
sleeplessness; insomnia; wakefulness
eternal sleep; eternal rest; passing away; death
pleasant sleep; good sleep; sleeping well
to hypnotize; to hypnotise
idle slumber; indolence; inactivity
hypnopaedia; hypnopedia; sleep-learning
auto-hypnosis; self-hypnosis; self-induced hypnotism
falling asleep; sleep onset
disturbance of sleep; nuisance in the middle of the night
deep sleep; sleep soundly
in spring one sleeps a sleep that knows no dawn; in spring one sleeps like a log
going to sleep; falling asleep; sleeping
sleeping medicine; hypnotic; soporific
artificial hibernation; induced hibernation
sleep apnea syndrome; SAS
estivation; aestivation; summer sleep
anhydrobiosis; cryptobiosis; drought dormancy
sleepwalking; somnambulism
drowsiness; somnolence; somnolentia; fatigue; lethargy
sleep debt; sleep deficit
sleeping sickness; sleeping disease
the first sleep (of silkworms)
short sleeper; person who does not need much sleep
fatal familial insomnia; FFI
sleep onset REM period; SOREMP
Japanese Society of Sleep Research; JSSR
sleep induction disorder; sleep onset insomnia
circadian rhythm sleep disorder; CRSD
circadian rhythm sleep-wake disorder; CRSWD
good appetite and pleasant sleep; enjoying one's food and sleeping well
dormant state; torpor; non-operating state; idling
inactive bank account (no withdrawals or deposits made, and to which the owner's rights have been terminated)
African sleeping sickness; African trypanosomiasis