The effect of different dinner timings on nocturnal sleep

Investigation of the effect of different dinner timings on nocturnal sleep architecture and sleep quality: A randomized crossover trial - Different dinner timings: Effects on nocturnal sleep architecture and quality

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000055921

Enrollment

Registered

2024-10-23

Start date

2024-10-23

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Healthy participants

Interventions

Setting the dinner time to 19:00 on the day of the nocturnal sleep measurement. Setting the dinner time to 16:00 on the day of the nocturnal sleep measurement. Setting the dinner time to 22:00 on the

Eligibility

Sex/Gender

Male

Inclusion criteria

Inclusion criteria: Male individuals aged 18 to 29

Exclusion criteria

Exclusion criteria: 1.Individuals with a extreme morning or evening chronotype 2.Individuals with a smoking habit 3.Individuals with diseases, sleep disorders, or mental disorders that impair their capacity for self-care, or those under medical prescription

Design outcomes

Primary

Measure	Time frame
Sleep-related index (sleep stage appearance probability, sleep efficiency, sleep onset latency, Awakenings (>5 min), Wake after sleep onset, sleep stage transitions	—

Secondary

Measure	Time frame
Glycemic variability, cardiac nervous activity (%HF, LF/HF), core body temperature, subjective assessments using visual analogue scales	—

Countries

Japan

Contacts

Public ContactTakahiro Yoshizaki

Toyo University Faculty of Health and Sports Sciences

yoshizaki@toyo.jp03-5924-2823

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026