World Sleep Day (the Friday before the northern hemisphere vernal equinox) is an annual event organized by the World Sleep Day Committee of the World Sleep Society, formerly World Association of Sleep Medicine (WASM), since 2008. The goal is to celebrate the benefits of good and healthy sleep and to draw society's attention to the burden of sleep problems and their medical, educational, and social aspects, and to promote the prevention and management of sleep disorders.

The first World Sleep Day was held on 14 March 2008. Events involving discussions, presentations of educational materials and exhibitions take place around the world and online. Its slogan was 'Sleep well, live fully awake'.

More Info: en.wikipedia.org