Microsleep and Sleep debt

2 new terms we should have learned in archi school

microsleep:
"A microsleep is an episode of sleep which may last for a fraction of a second or up to thirty seconds.^[1] Often, it is the result of sleep deprivation, mental fatigue, sleep apnea, hypoxia, narcolepsy, or hypersomnia. Microsleeps can occur at any time, typically without significant warning.
Microsleeps (or microsleep episodes) become extremely dangerous when occurring during situations which demand continual alertness, such as driving a motor vehicle or working with heavy machinery. People who experience microsleeps usually remain unaware of them, instead believing themselves to have been awake the whole time or to have temporarily lost focus.
wiki here
(i thought that was just daydreaming)

sleep debt:
"Sleep debt is the cumulative effect of not getting enough sleep. A large sleep debt may lead to mental and/or physical fatigue.
There are presumed to be two kinds of sleep debt, caused by partial sleep deprivation or total sleep deprivation. Partial sleep deprivation occurs when a person or a lab animal sleeps too little for many days or weeks. Total sleep deprivation means being kept awake for days or weeks.^[1] There is debate in the scientific community over the specifics of sleep debt, and it is not considered to be a disorder."
wiki here