Sleep restriction therapy
A type of therapy in which the number of hours of sleep are restricted.
Sleep restriction therapy is used in insomnia. Some people with insomnia spend too much time in bed unsuccessfully trying to sleep. They may benefit from a sleep restriction program that at first allows only a few hours of sleep during the night. Gradually the time is increased until a more normal night’s sleep is achieved.
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Talking in one’s sleep is considered a normal phenomenon that is of no medical or psychological consequence. Also called somniloquy.
- Sleep, non-rapid eye movement
NREM (non-rapid eye movement) sleep is dreamless sleep. During NREM, the brain waves on the electroencephalographic (EEG) recording are typically slow and of high voltage, the breathing and heart rate are slow and regular, the blood pressure is low, and the sleeper is relatively still. NREM sleep is divided into 4 stages of increasing depth […]
- Sleep, NREM
NREM (non-rapid eye movement) sleep is dreamless sleep. During NREM, the brain waves on the electroencephalographic (EEG) recording are typically slow and of high voltage, the breathing and heart rate are slow and regular, the blood pressure is low, and the sleeper is relatively still. NREM sleep is divided into 4 stages of increasing depth […]
- Sleep, rapid eye movement
REM sleep is the portion of sleep when there are rapid eye movements (REMs). Dreams occur during REM sleep. We typically have 3 to 5 periods of REM sleep per night. They occur at intervals of 1-2 hours and are quite variable in length. An episode of REM sleep may last 5 minutes or over […]
- Sleep-disordered breathing
A condition characterized by repeated episodes of hypopnea (underbreathing) and apnea (not breathing) during sleep. A significant proportion of adults are thought to experience sleep-disordered breathing. Sleep-disordered breathing can cause temporary elevations in blood pressure in association with lowered blood oxygen levels and may cause elevated blood pressure during the daytime and, in time, sustained […]