英和和英

to listen to one's breathing to ascertain if one is asleep

the act of sleeping

am/are/is sleeping

to lie completely stretched out

to lie on one's side

Go to bed.

one's condition when sleeping

to sleep soundly―sleep a sound sleep

drop asleep

one's sleeping figure

to pretend to be asleep―make believe that one is asleep―feign sleep―sham sleep―play possum

I'm going to bed.

I am going to sleep.

to lie on one's back

I'll retire to bed.

to sleep in the open air

to curl oneself up

to keep watch―keep vigil

sleeping deeply

to lie in bed―sleep in bed

Stay in bed.

He is sound asleep―fast asleep.

to lie in bed

I slept well.

to sulk in bed

to lie down on one's side

the act of taking a brief nap

to sleep one's life away

to make a person sleep

be able to accommodate for sleeping