Sleep latency-- The amount of time that it takes to fall asleep. Sleep latency is measured in minutes and is important in diagnosing depression.

A multiple sleep latency test, which measures sleep latency (onset) and how quickly REM sleep occurs, may also be used. People who have narcolepsy usually fall asleep in less than five minutes.

measures sleep latency (onset) and how quickly REM sleep occurs, may be used. People who have narcolepsy usually fall asleep in less than five minutes

Records eye movement and determines when the patient is in REM sleep. Helps to determine sleep latency, total sleep time, time spent in each sleep stage, number of arousals during sleep.

CAS (column access strobe) Latency and RAS (row access strobe) Latency