1.   A frequently cited study conducted in Los Angeles yielded some interesting results concerning noise and how it disturbs sleep.

2.   Do not disturb this sleep unless there are other indications that the child is not sleeping a peaceful, healing sleep.

3.   Her sleep was disturbed by a violent hammering on the door.

4.   Local people said their sleep was being disturbed by the noise from the aircraft.

5.   Loud frogs are disturbing the sleep of local home owners.

6.   Cancer treatment can sometimes disturb sleep and often disrupt normal eating and exercise habits, sapping people of their usual stamina.

7.   It disturbed his sleep.

8.   People who suffer from depression often lose interest in their usual sources of enjoyment, feel worthless and indecisive, and may have disturbed sleep.

9.   Sleep is often disturbed by the need to urinate often during the night, resulting in daytime fatigue that can impair work and social activities.

10.   The anthrax spore lurks in the soil for months or decades, a patient assassin waiting for its sleep to be disturbed.