nocturnalism
Preference for darkness
Nocturnalism is the condition or habit of being active at night.
The term applies to animals whose biology suits them for nighttime activity—owls, bats, raccoons—but extends to humans who keep late hours by preference or necessity: Years of shift work had pushed him into permanent nocturnalism.
The adjective is nocturnal.
One who stays up late
- sleeplessnessInability to rest
- insomniaPersistent inability to rest
- wakefulnessState of being conscious
- after-hoursBeyond regular closing
midnight · all-nighter · chronotype · graveyard-shift · restlessness · alertness · productivity · creativity
Daily biological cycle
- crepuscularRelating to dusk
- adaptationFitting to new conditions
- owlsNocturnal birds of prey
- batsFlying nocturnal mammals
rodents · predation · vision · echolocation · hunting · foraging · metabolism · thermoregulation
Evening entertainment culture
- undergroundBelow ground or countercultural
- subcultureGroup with alternative norms
- bohemianArtistic nonconformist type
- vampirismFeeding on blood
gothic · darkness · mystery · transgression · forbidden · clandestine · secrecy · shadows
night-owl
One who stays up late
- sleeplessnessInability to rest
- insomniaPersistent inability to rest
- wakefulnessState of being conscious
after-hours · midnight · all-nighter · chronotype · graveyard-shift · restlessness · alertness · productivity · creativity · solitude
circadian
Daily biological cycle
- crepuscularRelating to dusk
- adaptationFitting to new conditions
- owlsNocturnal birds of prey
bats · rodents · predation · vision · echolocation · hunting · foraging · metabolism · thermoregulation · eyes
nightlife
Evening entertainment culture
- undergroundBelow ground or countercultural
- subcultureGroup with alternative norms
- bohemianArtistic nonconformist type
vampirism · gothic · darkness · mystery · transgression · forbidden · clandestine · secrecy · shadows · moonlit