If a co-worker catches you dozing off in your cubicle today, you have an excuse: National Napping Day.
Established in 1999, National Napping Day always falls on the day directly after daylight-saving time begins.
The day is designed to help people catch up with their sleep losing an hour, and to highlight the benefits of napping. Communities have celebrated National Napping Day with fundraisers like "napathons."
William Anthony, professor of rehabilitation counseling at Boston University Sargent College of Health and Rehabilitation Sciences and his wife, Camille Anthony, co-founded the holiday.