Memorial Day Offer

Discover your mystery discount!

Familial natural short sleep

Familial Natural Short Sleep (FNSS) Traits and Genetics: – Individuals with FNSS typically sleep 4 to 6 hours per night. – They wake up feeling […]

« Back to Glossary Index

Familial Natural Short Sleep (FNSS) Traits and Genetics:
– Individuals with FNSS typically sleep 4 to 6 hours per night.
– They wake up feeling well-rested without any consequences of sleep deprivation.
– Enhanced memory recall abilities are common among natural short sleepers.
– Traits include outgoing personality, high productivity, lower body mass index, resilience, and pain tolerance.
– FNSS is inherited as an autosomal dominant trait.
– Mutations in genes like DEC2/BHLHE41, ADRB1, and NPSR1 influence sleep patterns and activity levels.
– Around four to seven genetic mutations are implicated in FNSS.

FNSS Diagnosis and Differential Diagnosis:
– Diagnosis is usually not necessary, but methods include questionnaires and clinical methods like genetic testing.
– Differential diagnoses include advanced sleep phase syndrome, delayed sleep phase syndrome, and conditions like insomnia.

FNSS and Health Implications:
– No known health complications associated with FNSS.
– FNSS individuals may be more prone to subclinical hypomania.
– Studies suggest that short sleepers might be more resistant to the effects of sleep deprivation.
– Familial advanced sleep phase syndrome and related sleep disorders can have genetic underpinnings.

FNSS Prevalence, History, and Media Coverage:
– Estimated 1 to 3% of the population has the FNSS trait.
– FNSS was first described in 2009 by Ying-Hui Fu.
– Media describes FNSS as a desirable superpower and uses informal names like ‘sleepless elite’.

Genetic Basis and Research Findings on Short Sleep:
– Some people possess genetic mutations that allow them to function well on minimal sleep.
– Variants in genes like BHLHE41, NPSR1, DEC2, and GRM1 are associated with short sleep traits.
– Studies have identified rare genetic mutations affecting sleep/wake behaviors and memory consolidation.

Familial natural short sleep (Wikipedia)

Familial natural short sleep is a rare, genetic, typically inherited trait where an individual sleeps for fewer hours than average without suffering from daytime sleepiness or other consequences of sleep deprivation. This process is entirely natural in this kind of individual, and it is caused by certain genetic mutations. A person with this trait is known as a "natural short sleeper".

Familial natural short sleep
This condition is inherited as an autosomal dominant trait.
SpecialtyMedical genetics
CausesGenetic mutation

This condition is not to be confused with intentional sleep deprivation, which leaves symptoms such as irritability or temporarily impaired cognitive abilities in people who are predisposed to sleep a normal amount of time but not in people with FNSS.

This sleep type is not considered to be a genetic disorder nor are there any known harmful effects to overall health associated with it; therefore it is considered to be a genetic, benign trait.

« Back to Glossary Index
This site uses cookies to offer you a better browsing experience. By browsing this website, you agree to our use of cookies.