Highlighting the importance of sleep health

In Japan, the 23rd of every month, as well as February 3rd annually, are Insomnia Day 不眠の日 (fumin no hi). The date February 3rd was chosen as a wordplay: “2” (fu), “3” (mi), and “n” together sound like “fumin” (insomnia). Since insomnia can occur year-round, the 23rd of each month also carries the same designation for the same reason.

Insomnia Day is a commemorative awareness initiative created by Esseisu Pharmaceutical comany. Based in Tokyo, the company manufactures and sells sleep improvement products like “Driel,” an over-the-counter remedy for temporary insomnia symptoms such as difficulty falling asleep or waking during the night. Driel is allegedly designed to gently promote natural sleep without the stronger effects of prescription medications.

Studies suggest that around 53% of Japanese people experience some form of sleep disturbance, yet many lack accurate knowledge about treatment options. The commemorative day aims to raise awareness and share reliable information about sleep health.