Subjective sleep feeling caused by using a functional fiber blend down comforter - Study using cross over design -

Subjective sleep feeling caused by using a functional fiber blend down comforter - Study using cross over design - - Subjective sleep feeling caused by using a functional fiber blend down comforter - Study using cross over design -

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000056571

Enrollment

Registered

2024-12-27

Start date

2024-12-27

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

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Healthy individuals who volunteered to participate in the study with no history of psychiatric disorders, sleep disorders. 2. Individuals aged 18 years or older and under 60years at the time of obtaining consent. 3. Individuals who own a smartphone or PC and can answer questionnaire online.

Exclusion criteria

Exclusion criteria: 1. Individuals with underlying conditions such as chronic respiratory disease, heart disease, kidney disease, or liver disease. 2. Individuals with systemic skin diseases such as severe atopic dermatitis or psoriasis. 3. Individuals receiving systemic steroids or immunosuppressants. 4. Individuals who are not in an environment where they can sleep alone. 5. Individuals who use far-infrared radiating materials or similar materials in their daily bedding and clothing. 6. Individuals who do not use down comorters for their regular bedding. 7. Individuals deemed unsuitable by the principal investigator.

Design outcomes

Primary

Measure	Time frame
OSA sleep inventory MA version	—

Secondary

Measure	Time frame
Pittsburg Sleep Quality Index: PSQI Evaluation of sleep restfulness Evaluation of fatigue Evaluation of comforter usability	—

Countries

Japan

Contacts

Public ContactMayu Murata

Kawada Feather Co., Ltd. laboratory

murata@kawada.net0596-55-2431

Outcome results