"I have not slept for two days, or we would be traveling now."

I was very disturbed and couldn't sleep for two days.

The last time I saw them they hadn't slept for two days either.

"I couldn't sleep for two days after that game," he said.

No one slept for two days after the disaster, they said.

"We have not slept more than three hours for four days to do this move."

It looked as if they had not slept for many days.

I'd just slept and looked at a river for three days.

No relief at all, also couldn't sleep for 3 days.

Then she wrote them down and slept for three days.