Geneva, March 20 -- International Clinical Trials Registry received information related to the study (JPRN-UMIN000060744) titled 'Effects of down comforters blended with functional fibers on subjective sleep quality and sleep EEG' on Feb. 26.

Study Type: Interventional

Study Design: Parallel Randomized

Primary Sponsor: Kawada Feather Co., Ltd.

Condition: Healthy Adults

Intervention: Participants sleep for three weeks using only a down comforter blended with functional fibers as their bedding. Participants sleep for three weeks using only a down comforter blended with standard rayon fibers (without functional properties) as their bedding....

Recruitment Status: Not Recruiting

Phase: Not selected

Date of First Enrollment: 2026/...