Sleep is a state of rest when the eyes are closed (for most species) and consciousness is altered. Dreaming takes place once a lifeform reaches REM sleep. (TNG: "The Best of Both Worlds, Part II", "Night Terrors", "Schisms", "Phantasms"; VOY: "Waking Moments", "Unimatrix Zero")
In 2151, T'Pol was treated by Doctor Phlox with a simple analgesic which should clear her tension headache and stop her problems finding sleep as she was sleepless for two days. (ENT: "Breaking the Ice")
Denobulans required little sleep, other than their annual six-day hibernation cycle. (ENT: "Dear Doctor", "Two Days and Two Nights")
During Hoshi Sato's delusion while out of phase in the pattern buffer, she overslept and showed up late for work but could not do her job properly, so Jonathan Archer suggested she go back to sleep. Later, Doctor Phlox suggested she get a good night's sleep. (ENT: "Vanishing Point")
Unable to reach REM sleep within Tyken's Rift, the crew of the USS Brattain went insane and seemingly murdered each other. (TNG: "Night Terrors")
When he was briefly stripped of his powers and made a normal, mortal Human, Q found sleep to be one of the most disturbing processes of the Human condition. (TNG: "Deja Q")
Because he was an android, Data did not require sleep, a fact that disturbed Captain Picard when he was trying to fall asleep on a Klingon vessel headed for the Romulan Star Empire on a secret mission in 2368. (TNG: "Unification I")
In 2371, Bajoran First Minister Kalem Apren died in his sleep due to heart failure. (DS9: "Shakaar")
In 2374, The Doctor, performing osteopathic pressure therapy on Captain Kathryn Janeway, asked if she'd been getting enough sleep, to which she replied, "More or less. Mostly less." He complained that she worked "absurdly long hours under constant stress, eating on the run, without sufficient exercise or rest." (VOY: "Scientific Method")
In 2376, an exhausted and sleep-deprived Tuvok fell asleep on the bridge of the Voyager, revealing that Vulcans, like Humans, snore. Not withstanding this, it was possible for Vulcans to go without sleep for more than two weeks, though there was eventually a point of diminishing returns. (VOY: "Muse")
Seven of Nine didn't sleep and regenerated instead. In 2378, she made a holoprogram, Seven of Nine Alpha-3, in which her Borg implants were removed and she had her own quarters to sleep in. (VOY: "Human Error")
Species 8472 did not sleep. (VOY: "In the Flesh") Neither did Jem'Hadar. (DS9: "To the Death")
Tosk only required seventeen minutes of sleep per rotation. (DS9: "Captive Pursuit")
Sleep technologies
- Alpha-wave inducer
- Bed
- Delta-wave inducer
- Mattress
- Neurogenic field
- Sedative
- Sleeping bag
- Sleeping mat
- Somnetic inducer
- Sound machine
Sleepwear
See also
- Dream species
- Hibernation
- Insomnia
- Nap
- Sleep disorder
- Sleepwalking
- Yawn