somnia

somni-, somno-, somn-, -somnia, -somniac +

(Latin: sleep; dream)

cacosomniaSleeplessness; unable to sleep; bad sleeping conditions.dyssomnia, dyssomic1. Sleep disorders characterized by a disturbance in the amount, quality, or timing of sleep.
2. Any disturbances of normal sleep or rhythm pattern.
3. Any disturbance involving the amount, quality, or timing of sleep. They include primary insomnia, primary hypersomnia, narcolepsy, breathing-related sleep disorders, altitude insomnia, food allergy insomnia, environmental sleep disorder, and circadian rhythm sleep disorders. dyssomniacA person who has a disturbance of normal sleep.hypersomnia (high” pur SAHM nee uh)1. A condition characterized by abnormally long or frequent periods, or abnormal depth, of sleep.
2. Excessive or uncontrollable sleepiness.
3. A condition in which sleep periods are excessively long, but the person responds normally in the intervals; distinguished from somnolence.hyposomniaA condition of getting insufficient sleep.hyposomniacA reduction in the time of sleeping; insufficient sleep for anyone.hyposomnyDecrease in normal sleepiness.insomnia1. The inability to sleep; sleeplessness.
2. Inability to sleep, in the absence of external impediments; such as, noise, a bright light, etc., during the period when sleep should normally occur.