general/sleep

none

Rare, shifting sleep pattern

Set of practices around healthy sleeping

Medical recording of sleep activity

Short sleep

Metaphor for the human brain

Falling asleep while working

Set of practices around healthy sleeping

Dubious idea about physiological cycles

Short period of sleep during typical waking hours

none

Attempt to convey information to a sleeping person

Set of practices around healthy sleeping

none

Condition of abnormally deep sleep or a stupor

Method of recording sleep patterns

Neurobiological theory of dreams

Sleep pattern with more than one period of sleep in a 24-hour period

none

Specific application of intentional sleep deprivation

Temporary episode of sleep or drowsiness

Disputed technique for resolving infant sleep problems

none

Set of practices around healthy sleeping

none

Medical recording of sleep activity

Set of practices around healthy sleeping

Sleep pattern with more than one period of sleep in a 24-hour period

Rare, shifting sleep pattern

Rare, shifting sleep pattern

Rare, shifting sleep pattern

Rare, shifting sleep pattern

Person who usually gets up early in the morning and goes to bed early in the evening

Deliberate efforts to bring on sleep

State of consciousness between waking and sleeping

Person who tends to stay awake at night