Sleeping, in a deep sleep.
dead asleep
Sleeping in a deep sleep
cry oneself to sleep
To cry until or to fall asleep.
sleeping at the switch
Alternative form of asleep at the switch.
sweet dreams
Said to someone before they fall asleep, wishing them a good sleep.
sound asleep
Sleeping still and silently.
sleep camel
A person who habitually does with little to no sleep during the week a…