źle spać

To begin with, I slept badly at night and never in the day.

It was easy to say such things, even knowing that because of them he'd sleep badly if at all.

For the last three days, Thomas had slept badly, or not at all.

He looked like a man who worried a lot, worked too hard and slept badly at night.

It is no excuse that I have slept badly and thought much since we came here.

He'd slept badly, which was unusual since he could generally turn sleep off and on at will.

"I sleep badly and usually doze off just as everyone else is getting up!"

Although he didn't know it then, he would sleep badly for the rest of his life.

That night, alone in her hotel room, Caroline slept badly.

To me the city that never sleeps badly needed a nap.