sleep pressure
Accumulating need for rest
Sleep pressure is the body's accumulated need for sleep, building during waking hours and dissipating during rest.
The longer you stay awake, the greater the pressure becomes, making sleep increasingly difficult to resist.
By midnight, the sleep pressure was overwhelming.
The concept helps explain why sleep deprivation makes even brief naps irresistible.
- adenosinePurine nucleoside in cells
- insomniaPersistent inability to rest
- somnolenceAbnormal urge to doze
- heavy eyelidsTired, half-closed eyes
- nodding offFalling briefly asleep
melatonin · napping · homeostasis · fatigue · hypothalamus · light exposure · neurotransmitters · hypersomnia · circadian rhythm · narcolepsy · work schedules · power naps · bedtime routines · jet lag · siesta · restless leg syndrome · temperature regulation · drowsiness
sleep pressurewakefulness
State of being conscious
alertness · recovery · arousal · recuperation · restorative sleep
sleep pressurealertness
Active mental awareness
vigilance · wakefulness · mental clarity · freshness · energy
sleep, pressure, sleeps, slept, sleeping, sleeper, sleepers, sleepy, sleepless