In other cases, the discomfort seems to come from general tension, lack of proper sleep, and/or stress.

"And I order you to get some proper sleep at once."

So Margo decided to go to bed and gain a proper sleep before her turn came to keep watch.

Get proper sleep, and whatever you do, don't smoke.

Get proper sleep, and stay away from drugs and alcohol.

All would be well if she had a proper, dreamless sleep.

He couldn't remember when he'd last had a proper sleep.

Lack of proper sleep had affected everyone, in one way or another.

Remember, the only real cure for sleepiness is proper sleep.

A balanced diet provides natural disease prevention, weight control and proper sleep.