When that happens, you will fall into a restful sleep.

"We guarantee a full night of deep and restful sleep."

He closed his eyes and soon fell into a restful sleep.

It seemed to those watching that he had just fallen into a restful sleep.

Now, what she desired most was a restful, deep sleep.

Suddenly, completely, she fell into her first restful sleep in two weeks.

How long, he wondered, had she been without restful sleep?

She could not work hard enough by day to ensure restful sleep at night.

The night was only going to last 5 hours and yet I had not enjoyed a minute of restful sleep.

It had been his first really restful sleep in weeks.