NPS rs10734107: Sleep Timing and Genetics
rs10734107 is a common single nucleotide polymorphism located near the neuropeptide S (NPS) gene on chromosome 10. Emerging genetic research links this variant to subtle differences in habitual sleep timing and sleep onset behavior. However, current evidence remains limited and suggestive rather than definitively causal.
What each genotype means
Potential sleep timing variation
This genotype is located near the NPS gene, which has been studied for its role in regulating sleep-wake cycles. Research indicates a statistical association between this variant and variations in habitual sleep timing, though the evidence remains limited and does not confirm a direct causal effect on your sleep patterns.
This genotype is common in European populations, where the minor allele frequency for this variant is approximately 0.20 to 0.30.
Potential sleep timing variation
Carrying one copy of each allele at this location near the NPS gene may be associated with subtle differences in sleep onset behavior. Because this association is based on limited evidence from genome-wide studies, it should not be used to predict your personal sleep habits or diagnose sleep-related conditions.
This heterozygous genotype is frequently observed in populations of European ancestry, consistent with the reported minor allele frequency.
Potential sleep timing variation
This genotype is associated with the NPS gene region, which has been identified in research exploring the genetic basis of sleep timing and behavior. Current scientific understanding of this association is limited, and it is not a definitive indicator of your specific sleep timing or quality.
This genotype is common, occurring in a significant portion of individuals of European ancestry based on the reported population frequency of the variant.
Genetic Location and Variant Details
The single nucleotide polymorphism designated as rs10734107 is situated on human chromosome 10, positioned approximately two kilobases downstream of the NPS gene. Because it resides outside the protein-coding exons, it does not alter the primary amino acid sequence of the neuropeptide itself. Instead, variants in flanking non-coding regions are generally hypothesized to influence regulatory mechanisms, such as gene expression levels, enhancer accessibility, or transcript stability. In genetic studies, rs10734107 represents a biallelic single nucleotide substitution with common ancestral and derived alleles. Like many intergenic and downstream variants examined in genome-wide association studies, its presence is often tracked as a statistical tag or marker for a wider block of genetic variation inherited together across generations.
Biological Role of Neuropeptide S
The NPS gene encodes prepro-neuropeptide S, a precursor that matures into neuropeptide S, a small signaling peptide expressed primarily within specific brainstem and central nervous system circuits. Neuropeptide S acts by binding to its cognate G-protein coupled receptor, NPSR1. Extensive physiological and neurobiological research demonstrates that the NPS/NPSR1 signaling pathway plays a prominent role in promoting arousal, wakefulness, exploratory behavior, and modulating anxiety responses. When activated, the pathway helps regulate sleep-wake transitions and circadian rhythms. Disruption or heightened signaling through this biological system has been shown in human and animal research to alter sleep architecture, sleep duration, and arousal states.
Research on Sleep Timing and Evidence Strength
Scientific interest in rs10734107 arose from a genome-wide association study examining sleep traits, such as sleep timing, latency, and duration in twin cohorts [A Genome-Wide Association Study of Sleep Habits and ... - PMC](https://pmc.ncbi.nlm.nih.gov/articles/PMC4083458/). In this study, rs10734107 was identified among the most strongly associated markers for habitual sleep timing, demonstrating a suggestive p-value of 1.1 × 10⁻⁵. However, this signal did not meet the stringent threshold required for formal genome-wide significance (typically p < 5 × 10⁻⁸). Consequently, the overall evidence strength for rs10734107 remains categorized as limited. While it aligns biologically with known receptor associations like NPSR1 variants, broader independent replication across diverse cohorts is necessary before definitive conclusions can be drawn.
Interpreting Genetic Sleep Traits
It is critical to distinguish between modest statistical associations and medical diagnoses. Having a particular genotype at rs10734107 does not cause insomnia, sleep disorders, or abnormal chronotypes, nor does it guarantee a specific bedtime. Sleep timing and onset behavior are highly complex, polygenic traits governed by hundreds of common genetic variants interacting with each other. Furthermore, environmental and behavioral factors—such as light exposure, work schedules, caffeine consumption, stress, and sleep hygiene—play a far more dominant role in habitual sleep timing than any single non-coding genetic polymorphism. This variant reflects an area of active basic scientific investigation, not a clinical tool.
How common is this variant?
The minor allele for rs10734107 is relatively common in European populations, with an estimated minor allele frequency (MAF) between approximately 0.20 and 0.30.
Frequently asked questions
Can rs10734107 tell me what time I should go to sleep?
No. While the variant was suggestively linked to habitual sleep timing in population studies, its individual effect size is tiny. Your actual bedtime is predominantly determined by circadian cues, daily routines, light exposure, and behavioral habits.
Does having this variant mean I have a sleep disorder?
No. rs10734107 is not a disease-causing mutation and is not recognized by clinical databases as a cause of insomnia or any sleep disorder. It represents normal human genetic variation.
What is the function of the NPS gene?
The NPS gene produces neuropeptide S, a signaling protein in the brain that binds to the NPSR1 receptor. Together, they regulate brain pathways involved in wakefulness, arousal, vigilance, and anxiety.
Can I take medications to target this variant?
There are no FDA-approved medications or clinical interventions designed around the rs10734107 variant. Anyone experiencing persistent sleep difficulties or insomnia should speak directly with a healthcare provider.
Sources & further reading
Educational information only, last refreshed 9/7/2026. Not medical advice — these associations describe population statistics, not individual predictions.
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