I had a dead sleep last night.

She goes to sleep early every night.

She has gone to sleep.

I am going to sleep early tonight.

She went to sleep early last night.

The sleeping cars were comfortable and spacious.

Sleep disorders can have a significant impact on a person's overall health and well-being.

Sleep apnoea is a sleep disorder characterized by pauses in breathing or instances of shallow or infrequent breathing during sleep.

I need to sleep off this headache.

I often sleep over at my friend's house on weekends.