A cross-over exploratory study to examine sleep changes caused by bedding materials

A cross-over exploratory study to examine sleep changes caused by bedding materials - Research on sleep changes caused by bedding materials

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000058585

Enrollment

Registered

2025-07-25

Start date

2025-06-23

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 adults

Interventions

Rush pillow Plastic pillow

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Applicants whose native language is Japanese Those who can refrain from wearing clothes with fabric softener, perfume, and hair styling products on the day of the examination.

Exclusion criteria

Exclusion criteria: Those who have a smoking habit Those who have symptoms such as olfactory disorder or rhinitis

Design outcomes

Primary

Measure	Time frame
Pittsburgh Sleep Quality Index OSA Sleep Questionnaire MA version VAS method (impressions and preferences of scents) Changes in brain waves (alpha waves, beta waves, theta waves, delta waves) and body movement patterns during sleep	—

Countries

Japan

Contacts

Public ContactKuniyoshi Shimizu

Faculty of Agriculture, Kyushu University Laboratory of Systematic Forest and Forest Products Science

shimizu.kuniyoshi.381@m.kyushu-u.ac.jp092-802-4675

Outcome results

None listed

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