Sleep
Insomnia is a general term for difficulty falling asleep and/or staying asleep. Insomnia is the most common sleep problem, with many adults reporting occasional insomnia, and 10–15% reporting a chronic condition. Insomnia can have many different causes, including psychological stress, a poor sleep environment, an inconsistent sleep schedule, or excessive mental or physical stimulation in the hours before bedtime. Insomnia is often treated through behavioral changes like keeping a regular sleep schedule, avoiding stimulating or stressful activities before bedtime, and cutting down on stimulants such as caffeine. The sleep environment may be improved by installing heavy drapes to shut out all sunlight, and keeping computers, televisions and work materials out of the sleeping area.
Trimipramine
Trimipramine's primary use in medicine is in the treatment of major depressive disorder, especially where sedation is helpful due to its prominent sedative effects. The drug is also an effective anxiolytic, and can be used in the treatment of anxiety. In addition to depression and anxiety, trimipramine is effective in the treatment of insomnia, and unlike most other hypnotics, does not alter the normal sleep architecture. In particular, it does not suppress REM sleep, and dreams are said to "brighten" during treatment. Trimipramine also has some weak antipsychotic effects with a profile of activity described as similar to that of clozapine, and may be useful in the treatment of psychotic symptoms such as in delusional depression or schizophrenia.