I love to sleep out under the stars.

He suffers from sleep apnoeas and has trouble sleeping at night.

Sleep apneas can cause disruptions in breathing during sleep.

She wore a beautiful dress with angel sleeves.

She always wears her heart on her sleeve, so you always know how she feels.

Many people with delayed sleep phase disorders struggle to fall asleep at a normal bedtime.

I sleep like a dog every night.

He lay on sleep.

I had a treacle sleep last night.

There are many nothing-up-my-sleeve numbers in mathematics.