somni-, somno-, somn-, -somnia, -somniac
(Latin: sleep; dream)
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.
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.
2. Being unable to sleep, even in the absence of external causes; such as, noise, a bright light, etc., during the period when sleep should normally occur: "Even when Josie is very tired, she spends many nights in a state of insomnia."
Go to this Word A Day Revisited Index
so you can see more Mickey Bach illustrations.
A person will die from total lack of sleep sooner than from starvation. Death will occur after about ten days without sleep; starvation takes a few weeks. A no-sleep death is no gradual fade away affair—it is preceded by insanity.
2. Someone who can not sleep; sleeplessness.
3. Exhibiting, tending toward, or producing insomnia.