The Short Sleep Study

Conditions

• Short Sleepers

Eligibility Criteria

Sex

ALL

Age

20 Years - 50 Years

Healthy Volunteers

Not accepted

Study Details

Natural Short Sleepers are defined as individuals who sleep fewer than 6 hours per night without any impact on health or daytime mental fatigue levels. Emerging evidence suggests that, in the general population, the gut microbiota would be negatively influenced by this sleep duration. It is possible that Natural Short Sleepers have a distinct gut microbiome. Identifying differences in microbiota composition may lead to an opportunity to improve health outcomes in those with inadequate or poor sleep.

Key Dates

Start date

Oct 23, 2025

Status verified

Nov 2025

Primary completion

Sep 30, 2026

Completion

Nov 30, 2026

Study Design

Enrollment

34 participants (estimated)

Arms

• Arm: Natural Short Sleepers
  Natural short sleepers (NSS) sleep on average \<6 hours per night, but feel no need to sleep longer, and do not show signs of daytime sleepiness or fall asleep in low stimulus environments.

Primary Outcome Measure

Microbiome characterization of the short sleeper population [ Time Frame: baseline through day 10 of the study period. ]

Locations (4)

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