His sleeping appearance looks very peaceful.

We used to sleep in a dormitory-style arrangement at the university dorm.

When I went on a trip with my friends, there weren't enough hotel rooms, so we all slept together in the same room.

He vomited in his sleep last night.

Last night, I drank too much and ended up vomiting in my sleep.

I bought new bedclothes.

Acetylcholine is one of the neurotransmitters.

My mother always said, 'A well-slept child is a well-kept child,' and encouraged me to go to bed early.

I overslept today, so I was late.

Char is my favorite character.