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Short Sleeping Syndrome (SSS)

Short sleeper syndrome (SSS) is a sleep condition characterized by sleeping for fewer than six hours each night. Most adults need seven or more hours of sleep each night to feel rested in the morning. Those with SSS, however, can function normally throughout the day despite less sleep.

Characteristics

- Routinely sleeping between four and six hours per night.
- Waking up refreshed despite short sleep duration.
- Feeling alert during the day without excessive drowsiness.
- Having few difficulties falling asleep at bedtime or staying asleep through the night.

Genes' association with Short Sleeper Syndrome

DEC2: This gene causes short sleepers to remain awake for longer then 35 hours.

ADRBI1 and NPSR1: These genes modify the brain’s neurotransmitters, creating shorter sleep cycles.

BHLHE41: A variant of this gene is associated with short sleep and resistance to sleep deprivation.

More Info!

-Short sleepers don't suffer these side effects doesn't necessarily mean that getting only 4-6 hours of sleep each night is harmless.
- People with SSS can function normally throughout the day despite less sleep.
-They can perform well at work or school despite their short sleep duration.
-Natural short sleepers do not have daytime drowsiness or other sleep-related health complaints.
The mutation associated with Short Sleeper Syndrome (SSS) is generally considered neutral or potentially beneficial.

Prevalence:
The mutations associated with Short Sleeper Syndrome (SSS) are extremely rare. It’s estimated that about 1% of the population could be natural short sleepers.
-The mutations associated with Short Sleeper Syndrome (SSS) do not appear to be more common in one gender or in a specific geographic area.

Discovery:
The first short-sleep gene, DEC2, was discovered in 2009 by a team led by Ying-Hui Fu and Louis Ptáček. This discovery was significant as it provided the first conclusive evidence that natural short sleep is, at least in some cases, genetic.