Suimin no Hi (Japan Sleep Day)
Also: 睡眠の日 · 春の睡眠の日 · 秋の睡眠の日 · 睡眠健康週間
Japan's twice-yearly sleep days, set in 2011 by the Sleep Health Promotion Organization with the Japanese Society of Sleep Research: 18 March (near World Sleep Day) and 3 September (a pun on 'gussuri', sound sleep). Each sits in a two-week sleep health period with public lectures, seminars and online information.
- Years
- 2011–now
- Country
- Japan
- Topic
- Sleep
- Asks people to
- Seek helpStart
- Strategy
- Simple instruction
- Channel
- EventsSocial (organic)Website
- Audience
- General public
Evidence
NoneUnknown
Sponsor (who paid)
- Sleep Health Promotion Organization (睡眠健康推進機構) NGO
- Japanese Society of Sleep Research (日本睡眠学会) NGO
Credits (who made it)
Not recorded yet.
Related campaigns
- World Sleep Day 2008–now
Sources
- What is Sleep Day in Japan? (CREX) reference
- 春の睡眠の日 (記念日 3月18日) reference
Research notes
Created 2026-10-24 by an AI research pass for #103 (G3); not reviewed by a person. The organiser's official site was not found or opened; sources are secondary. The organiser's parent foundation was renamed in 2018 (神経研究所 精神神経科学センター). To verify: 2011 start; 18 March and 3 September dates; week dates (11-25 March, 27 August-10 September).
Record cases/jp-suimin-no-hi.json, updated 2026-10-24· Link to this campaign