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Oversleep syndrome (OSS, alternatively "Oversleeping syndrome") is when a sleeper trying to adapt to a polyphasic schedule keeps oversleeping uncontrollably. This syndrome is often reached after a long adaptation and after sleep deprivation reaches unmanageable levels.

Oversleep syndrome (OSS, alternatively "Oversleeping syndrome") is when a sleeper trying to adapt to a polyphasic schedule keeps oversleeping uncontrollably. This syndrome is often reached after a long adaptation and after [[wikipedia:Sleep_deprivation|sleep deprivation]] reaches unmanageable levels.

== Symptoms ==

== Symptoms ==

Someone with oversleep syndrome keeps oversleeping while trying to adapt, while claiming that this will stop and they'll be able to adapt eventually. It can manifest itself in different ways, such as falling asleep early, failing to wake up, or falling asleep at random times during the day. Overall, they gain significant amounts of extra sleep time every day to reduce sleep deprivation.

Someone with oversleep syndrome keeps oversleeping while trying to adapt, while claiming that this will stop and they'll be able to adapt eventually. It can manifest itself in different ways, such as falling asleep early, failing to wake up, or falling asleep at random times during the day. Overall, they gain significant amounts of extra sleep time every day to reduce [[wikipedia:Sleep_deprivation|sleep deprivation]].

This symptom is fatal for adaptation (to reducing schedules) for two reasons. First, oversleeping ruins [[compression]] and [[repartitioning]] required for a successful adaptation. With extra sleep time, the body reduces the level of compression, making it impossible to sustain the schedule without oversleeps.

This symptom is fatal for adaptation (to reducing schedules) for two reasons. First, oversleeping ruins [[compression]] and [[repartitioning]] required for a successful adaptation. With extra sleep time, the body reduces the level of compression, making it impossible to sustain the schedule without oversleeps.

== Cause ==

== Cause ==

=== Sub-threshold schedule ===

=== Sub-threshold schedule ===

This syndrome is often reported by people trying extreme schedules, especially [[nap only]] schedules such as [[Uberman]] and [[Dymaxion]]. This occurs because when the body is completely unable to gain the vital sleep (in this case especially SWS) it needs, it desperately tries anything it can to gain more sleep time. This can manifest in [[zombie mode]], in which a sleeper gets up to turn off the alarms, or do whatever else is necessary, only to go back to sleep and having no recollection of what happened afterwards. People experiencing this often are advised to stop the attempt and recover from sleep deprivation.

This syndrome is often reported by people trying extreme schedules, especially [[nap only]] schedules such as [[Uberman]] and [[Dymaxion]]. This occurs because when the body is completely unable to gain the vital sleep (in this case especially SWS) it needs, it desperately tries anything it can to gain more sleep time. This can manifest in [[zombie mode]], in which a sleeper gets up to turn off the alarms, or do whatever else is necessary, only to go back to sleep and having no recollection of what happened afterwards. People experiencing this often are advised to stop the attempt and recover from [[wikipedia:Sleep_deprivation|sleep deprivation]].

=== Alarm tolerance / Snoozing ===

=== Alarm tolerance / Snoozing ===

It is also possible to experience this syndrome on more forgiving schedules, through a combination of poor alarm use, mistakes, and mild sleep deprivation. Some people (including monophasic sleepers) often turn off alarms repeatedly when trying to wake up, in the hopes that they will be more rested after it. This is extremely detrimental for adapting to reducing polyphasic sleep schedules, as you will only go back to sleep more and more times as sleep deprivation builds up, making adaptation impossible. The brain can quickly learn to disable the alarms unconsciously, which causes you to lose control of your waking time. With the great amount of sleep deprivation built up on some schedules, it is also possible to condition your brain to sleep through the alarm without even attempting to turn it off. Any of these happening would be fatal to your adaptation.

It is also possible to experience this syndrome on more forgiving schedules, through a combination of poor alarm use, mistakes, and mild [[wikipedia:Sleep_deprivation|sleep deprivation]]. Some people (including monophasic sleepers) often turn off alarms repeatedly when trying to wake up, in the hopes that they will be more rested after it. This is extremely detrimental for adapting to reducing polyphasic sleep schedules, as you will only go back to sleep more and more times as [[wikipedia:Sleep_deprivation|sleep deprivation]] builds up, making adaptation impossible. The brain can quickly learn to disable the alarms unconsciously, which causes you to lose control of your waking time. With the great amount of [[wikipedia:Sleep_deprivation|sleep deprivation]] built up on some schedules, it is also possible to condition your brain to sleep through the alarm without even attempting to turn it off. Any of these happening would be fatal to your adaptation.

== Effects ==

== Effects ==