Sleep
Sleep was, in "every sentient being in the universe", an essential (TV: Sleep No More [+]Loading...["Sleep No More (TV story)"]) periodic state of physiological rest during which the body was not active and the mind was unconscious. Both the human and Gallifreyan species slept with their eyes closed. However, while humans normally required a full night's sleep, Gallifreyans could make do with as little as an hour. (PROSE: The Highlanders [+]Loading...["The Highlanders (novelisation)"], AUDIO: Davros [+]Loading...["Davros (audio story)"]) The Doctor was known to have extra adventures while their companions were asleep. (HOMEVID: Bad Night [+]Loading...["Bad Night (home video)"], Clara and the TARDIS [+]Loading...["Clara and the TARDIS (home video)"]) In emoji, 😴 was the symbol used to denote a sleep state. (TV: Smile [+]Loading...["Smile (TV story)"])
A shorter form of sleeping was known as napping. (TV: Time and the Rani [+]Loading...["Time and the Rani (TV story)"])
The transitional state between waking and sleeping was known as Hypnagogia. (AUDIO: The Belly of the Beast [+]Loading...["The Belly of the Beast (audio story)"])
Humans[[edit] | [edit source]]
Even while having difficulty falling asleep during the night, a human would still experience short periods of non-REM sleep.
A human experiencing nightmares could try to perform the following actions in the sleep to wake up:
- concentrating, which would shift the brainwaves from theta to gamma and beta;
- observing things not present in ordinary life, which would alert the brain that it is sleeping;
- screaming, which would stimulate the amygdala and cause an upsurge of adrenaline, forcing the brain to open the eyes to assess the threat;
- blinking, which could cause the same action in real life;
- running.
In addition, Tanya Adeola had a theory that a brain in REM had a certain rhythm and that switching it to the heavy beat of alpha might cause awakening. (PROSE: The Stone House [+]Loading...["The Stone House (novel)"])
Although a sleeping individual appeared entirely inactive, some functions of their brain were actually more active than during wakefulness. The high amplitude brain waves known as delta waves were associated with sleep. (TV: Kinda [+]Loading...["Kinda (TV story)"]) When sleeping, series of thoughts, images, or emotions known as dreams could occur. (TV: The Time Monster [+]Loading...["The Time Monster (TV story)"])
During a certain stage of sleep, humans experienced an almost complete paralysis of the body, which prevented them from getting hurt while acting out the movements occurring in their dreams. (PROSE: Dry Pilgrimage [+]Loading...["Dry Pilgrimage (novel)"])
Sleep occurred naturally, but could also be induced through soporific substances, (TV: The Name of the Doctor [+]Loading...["The Name of the Doctor (TV story)"]) technological augmentation of the delta waves, (TV: Kinda [+]Loading...["Kinda (TV story)"]) or hypnosis. (TV: The War Machines [+]Loading...["The War Machines (TV story)"])
Jack Harkness once claimed that he didn't sleep. (TV: Ghost Machine [+]Loading...["Ghost Machine (TV story)"])
"Vicky" once told Chris Cwej that he looked upset, asking if he'd had a bad night of sleep. Cwej responded that "you could say that. A nightmare. Fifty years. A nightmare, or something inbetween. Something down the middle.". (WC: Cwej: Down the Middle Coda [+]Loading...["Cwej: Down the Middle Coda (webcast)"])
Time Lords[[edit] | [edit source]]
Young Time Lords and Gallifreyans, such as Susan, needed more sleep than older Time Lords, but much less than humans. Once they passed into their first maturation, they only needed one or two hours a night. (PROSE: The Sorcerer's Apprentice [+]Loading...["The Sorcerer's Apprentice (novel)"])
Indeed, the Doctor did not require much sleep. (AUDIO: Retail Therapy [+]Loading...["Retail Therapy (audio story)"], World Enough and Time [+]Loading...["World Enough and Time (audio story)"], HOMEVID: Good Night [+]Loading...["Good Night (home video)"], TV: Knock Knock [+]Loading...["Knock Knock (TV story)"]) Though they did not do so often, (AUDIO: Their Finest Hour [+]Loading...["Their Finest Hour (audio story)"]) the Doctor did sleep on occasion, (AUDIO: The Unknown [+]Loading...["The Unknown (audio story)"], TV: Sleep No More [+]Loading...["Sleep No More (TV story)"]) particularly after regeneration, (TV: Sleep No More [+]Loading...["Sleep No More (TV story)"]; TV: Spearhead from Space [+]Loading...["Spearhead from Space (TV story)"], Robot [+]Loading...["Robot (TV story)"], Castrovalva [+]Loading...["Castrovalva (TV story)"], Time and the Rani [+]Loading...["Time and the Rani (TV story)"], The Christmas Invasion [+]Loading...["The Christmas Invasion (TV story)"], Deep Breath [+]Loading...["Deep Breath (TV story)"], The Woman Who Fell to Earth [+]Loading...["The Woman Who Fell to Earth (TV story)"]) a big lunch, (TV: Sleep No More [+]Loading...["Sleep No More (TV story)"]; TV: The Two Doctors [+]Loading...["The Two Doctors (TV story)"]) when overheated, (TV: "All Roads Lead to Rome") or when no one was looking, (TV: Sleep No More [+]Loading...["Sleep No More (TV story)"]; AUDIO: The War Valeyard [+]Loading...["The War Valeyard (audio story)"]) and the Tenth Doctor did have a bedroom aboard the TARDIS. (COMIC: A Rose by Any Other Name [+]Loading...["A Rose by Any Other Name (comic story)"])
The Eighth Doctor claimed only to need a little sleep "every month or seven". (AUDIO: The War Valeyard [+]Loading...["The War Valeyard (audio story)"]) The Doctor often expressed that "Sleep is for tortoises", specifically in their third, (PROSE: The Scales of Injustice [+]Loading...["The Scales of Injustice (novel)"], Deadly Reunion [+]Loading...["Deadly Reunion (novel)"], AUDIO: The Mists of Time [+]Loading...["The Mists of Time (audio story)"]) fourth, (TV: The Talons of Weng-Chiang [+]Loading...["The Talons of Weng-Chiang (TV story)"]) fifth, (AUDIO: A Requiem for the Doctor [+]Loading...["A Requiem for the Doctor (audio story)"]) seventh, (AUDIO: Red [+]Loading...["Red (audio story)"], PROSE: Timewyrm: Exodus [+]Loading...["Timewyrm: Exodus (novel)"]), eighth, (AUDIO: Other Lives [+]Loading...["Other Lives (audio story)"]) tenth, (PROSE: The Last Dodo [+]Loading...["The Last Dodo (novel)"]) and twelfth incarnations. (TV: Knock Knock [+]Loading...["Knock Knock (TV story)"]) Nevertheless, the Twelfth Doctor thought that sleep was wonderful. (TV: Sleep No More [+]Loading...["Sleep No More (TV story)"])
Romana II claimed to be able to sleep standing up, in an effort to assuage Chris Parsons's concerns. Chris thought he detected a "slight smirk" when he questioned her on this. (PROSE: Shada [+]Loading...["Shada (novelisation)"])
