- Lucid dreams
- Sleep Paralysis
- False Awakening
- Sleep Deprivation
- Sleep Apnea
- Sleep walking
Function of Sleep
- Rapid eye movement (REM) sleep
- Memory Processing
- Adults and Children
- Jet lag
- Animals (proves necessity, nocturnal creatures)
- Waking up
Walking or carrying out complex activities while not fully awake. It usually occurs during the period of deep sleep which is usually the first few hours after falling asleep. Sleepwalking is most common in children but can occur at any age.
Some episodes of sleepwalking may involve the person just sitting up in bed and looking around, while in others the person may get out of bed and walk about, open cupboards, get dressed or eat, and may appear agitated. In extreme cases, the person may walk out of the house and carry out complex activities, such as driving a car.
Temporary inability to move or speak that occurs when waking up or falling asleep.
It’s not harmful and usually passes in a few seconds or minutes, but it can be very frightening or distressing.
Historically, sleep paralysis was widely considered the work of demons, and more specifically incubi, which were thought to sit on the chests of sleepers. In Old English the name for these beings was mare, , hence comes the mare in the word nightmare.
Insomnia, Fatal Familial Insomnia (FFI)
An extremely rare brain disease that effects sleep. It has no known cure and involves progressively worsening insomnia, which leads to hallucinations, delirium, dementia and eventually death.
- Increasing insomnia, panic attacks, paranoia, phobias (4 months)
- Hallucinations and more severe panic attacks (5 months)
- Complete inability to sleep, followed by rapid weight loss (~3 months)
- Dementia, becomes unresponsive or mute (6 months)