Trait
Difficulty falling asleep
Clinical name: Sleep onset insomnia
Difficulty initiating sleep, that is, increased sleep onset latency, refers to the condition where it takes 30 minutes or more to fall asleep.
Summary
- Also called
- Early insomnia, Increased sleep latency, Trouble falling asleep
- Body system
- Abnormality of the nervous system
Reference genomeGRCh38hg38
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Get my Genome Test10 genes linked to Difficulty falling asleep
Changes in these genes cause rare conditions in which Difficulty falling asleep is seen. Most people with this trait have none of those conditions, and a gene on this list says nothing about anyone's own genome.
| Gene | How often it is seen | Conditions |
|---|---|---|
| JKAMPJNK1/MAPK8 associated membrane protein | Always | In 1 condition |
| KICS2KICSTOR subunit 2 | Always | In 1 condition |
| LRRC7leucine rich repeat containing 7 | Always | In 1 condition |
| PI4K2Aphosphatidylinositol 4-kinase type 2 alpha | Always | In 1 condition |
| CHD8chromodomain helicase DNA binding protein 8 | Often (30–79%) | In 1 condition |
| FBXO11F-box protein 11 | Often (30–79%) | In 1 condition |
| GNSglucosamine (N-acetyl)-6-sulfatase | Often (30–79%) | In 1 condition |
| PRR12proline rich 12 | Often (30–79%) | In 1 condition |
| KMT5Blysine methyltransferase 5B | Sometimes (5–29%) | In 1 condition |
| CRY1cryptochrome circadian regulator 1 | Not recorded | In 1 condition |
How often is among people with one of the gene's conditions, the most often across them, as the Human Phenotype Ontology records it. These pages describe traits and the research behind them; they are not a diagnosis, and a doctor or genetic counsellor is the person to ask about symptoms.
Broader traits
Where this comes from
- The Human Phenotype Ontology, release 2026-09-01: the trait, its names, its definition and the genes linked to it. Find out more at hpo.jax.org.
- Data release 2026.10.16-c6eea6bf.
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