1sleep 
/ˈsli:p/ verb
sleeps; slept /ˈsli:p/ verb /ˈslɛpt/; sleep·ing 1 [no obj] : to rest your mind and body by closing your eyes and becoming unconscious
▪ I couldn't sleep last night. I was awake all night long. ▪ I usually try to sleep for at least eight hours every night. ▪ Did you sleep soundly/well last night? ▪ I slept badly/poorly. ▪ We were sleeping peacefully when a sudden loud noise woke us up. ▪ I can never sleep on airplanes. ▪ He has trouble sleeping. [=finds it difficult to fall asleep] — sometimes used figuratively ▪ New York is the city that never sleeps. [=a city that is full of activity all night] 2 [+ obj] : to have enough space for (a specified number of people) to sleep in it
▪ The tent sleeps five adults.
▪ I couldn't sleep last night. I was awake all night long. ▪ I usually try to sleep for at least eight hours every night. ▪ Did you sleep soundly/well last night? ▪ I slept badly/poorly. ▪ We were sleeping peacefully when a sudden loud noise woke us up. ▪ I can never sleep on airplanes. ▪ He has trouble sleeping. [=finds it difficult to fall asleep] — sometimes used figuratively ▪ New York is the city that never sleeps. [=a city that is full of activity all night]
▪ The tent sleeps five adults.
let sleeping dogs lie — see 1dog
sleep around
[phrasal verb] informal + disapproving : to have sex with many different people
▪ I heard he sleeps around.
▪ I heard he sleeps around.
sleep away [phrasal verb]
sleep away (something) or sleep (something) away chiefly US : to spend (a period of time) sleeping
▪ Don't sleep your day away.
▪ Don't sleep your day away.
sleep a wink
informal : to sleep for even a very brief time — used in negative statements ▪ I didn't/couldn't sleep a wink [=didn't/couldn't sleep at all] last night.
sleep in
[phrasal verb] informal : to sleep past the time when you usually get up
▪ On Sundays, we always sleep in.
▪ On Sundays, we always sleep in.
sleep like a baby/log
informal : to sleep very well
▪ After a long day of skiing, I slept like a baby/log last night.
▪ After a long day of skiing, I slept like a baby/log last night.
sleep off [phrasal verb]
sleep (something) off or sleep off (something) informal : to sleep until the effects of alcohol, medication, etc., are no longer felt
▪ She was sleeping off the anesthesia. ▪ He had too much to drink, and I'm letting him sleep it off.
▪ She was sleeping off the anesthesia. ▪ He had too much to drink, and I'm letting him sleep it off.
sleep on it
informal : to think more about something overnight and make a decision about it later
▪ You've heard my offer. Why don't you sleep on it and let me know what you decide.
▪ You've heard my offer. Why don't you sleep on it and let me know what you decide.
sleep over [phrasal verb]
: to stay overnight at another person's house
▪ My mother said that you could sleep over on Saturday. — see also sleepover
▪ My mother said that you could sleep over on Saturday. — see also sleepover
sleep through [phrasal verb]
sleep through (something) : to sleep without being awakened by (something, such as a loud noise)
▪ She slept (right) through the thunderstorm.
▪ She slept (right) through the thunderstorm.
sleep tight
: to sleep deeply and well
▪ Good night. Sleep tight.
▪ Good night. Sleep tight.
sleep together
[phrasal verb] informal : to have sex with each other
▪ She found out that her husband and his secretary were sleeping together.
▪ She found out that her husband and his secretary were sleeping together.
sleep with [phrasal verb]
sleep with (someone) informal : to have sex with (someone)
▪ She found out that her husband was sleeping with his secretary.
▪ She found out that her husband was sleeping with his secretary.
