If you have unresolved grief, take the opportunity to become aware of it. Alan Epstein, Ph.D., How to Be Happier Day by Day. Chronic loss of sleep can increase your symptoms of anxiety and affect your health, relationships and overall effectiveness. If loss of sleep is associated with sadness, it can lead to a major depression. This helps set your biological clock.
Naps are all right if they are taken on a fixed schedule.
Avoid using your bed for reading, watching television, doing work or other activities. Follow an established routine for going to bed, such as brushing your hair and teeth, pulling down the sheets, etc.