11.   In his pensione Sandison slept for two hours in the afternoon.

12.   She rarely sleeps for eight hours at a stretch.

13.   She was very overactive and had not slept for three nights.

14.   She would have closed the window, except that then Anna would probably be unable to sleep for the heat.

15.   Shortly before dawn I slept for a while on top of the wheelhouse.

16.   Sleep is usually used when talking about how long, how deeply, or where someone sleeps.

17.   When saying that someone is not awake, you use be asleep?

18.   Most people sleep for about eight hours.?

19.   The baby usually sleeps for an hour or so after breakfast.

20.   You slept for ten hours or more last night.