Cancer
Sleep and Neurological Issues See All Insomnia in Sleep and Neurological Issues One common problem in insomnia is that the bed has become connected with things other than sleep. This makes it hard to use the bed for sleep when you want. ...more Hypersomnia in Sleep and Neurological Issues One side effect of cancer and cancer treatment is sleeping too much. This is called hypersomnia, meaning "too much sleep.'' ...more Brain Tumors: Coping with Thinking and Memory Problems in Sleep and Neurological Issues Brain tumors may affect how you think, reason, and remember.