| Geno
|
Mag
|
Summary
|
| (C;T)
|
4.9
|
Short sleeper; rare mutation reported to reduce sleep time needed
|
| (T;T)
|
0
|
common/normal; 8+ hours of sleep typically needed
|
rs1406844918 represents a rare mutation known as the Y206H (p.Tyr206His) mutation in the neuropeptide S receptor 1 NPSR1 gene, located on chromosome 7.
In 2019, a report was published indicating this mutation was responsible for the short sleep phenotype observed in a (single) Chinese family. It is apparently a gain-of-function mutation and thus able to be inherited in a dominant manner. People with this trait [familial natural short sleep (FNSS)] have a lifelong tendency to sleep only 4 to 6 hours per night while still feeling sufficiently rested.[PMID 31619542
]
]
