sleep states

Unconscious rest stages

Sleep states are the distinct physiological phases the body cycles through during sleep.

These include light sleep, deep sleep (slow-wave sleep), and REM sleep, each characterized by different brain wave patterns, muscle activity, and eye movement.

The term appears in sleep science, infant care, and discussions of sleep disorders: The sleep tracker monitors your sleep states throughout the night.

Related
  • REMAcronym for dreaming phase
  • drowsyNearly falling asleep
  • dreamingMental imagery during slumber
  • deepFar from surface
  • wakingRegaining consciousness from sleep

twilight · coma · trance · hibernation · slumber · dozing · napping · power nap · restless · lucid · unconscious · semiconscious · alpha · delta · narcolepsy · sleepwalking · insomnia · torpor

Opposites
consciousness level

sleep stateswakefulness

State of being conscious

conscious awareness · alertness · awareness · arousal · wide awake

physiological arousal

sleep statesarousal

Stirring to heightened state

hyperarousal

engagement with environment

sleep statesenvironmental awareness

Consciousness of ecological issues

Family

sleep, states, sleeps, slept, sleeping, sleeper, sleepers, sleepy, sleepless

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Rated G