I could sleep away two days without too much problem.

Does he think that men sleep without watch all night?

How could he sleep thus, without cover on half his body?

It was going to be hard to sleep without that tonight.

He was clearly in pain, and wasn't likely to sleep again without help.

She would not sleep without it, as her father lived always with his.

The little guy's having trouble getting to sleep without his mom.

I wasn't going to be able to sleep without a drink.

Would he be able to go back to sleeping without a light?

Then why are they sleeping near each other without thought of their safety?