BOSTON -- If you're still feeling groggy after the daylight saving time change, you're probably not alone. Many Americans say they're always sleep deprived, and the day many people get the least sleep is the day after the "spring forward" time change when we lose an hour out of the day.

"On this day Americans are not only more sleep deprived but they are also more nap ready," said William Anthony, professor of rehabilitation counseling at Boston University Sargent College of Health and Rehabilitation Sciences.

Anthony and his wife, Camille, founded National Napping Day together. Among the benefits of napping, they say, is that napping makes you feel better by improving your mood. They say napping also makes you more productive by enhancing your performance. There's also no weight gain associated with napping because people can’t eat while they're asleep

Established in 1999, National Napping Day is meant to help Americans adjust to the time change while raising awareness of the benefits of napping.

Napping has received wide publicity lately because of a recent scientific study showing that regular napping is associated with a reduced level of risk of death from heart attacks or other heart related problems.

"Our goal is to overcome the prejudicial attitudes that many people have about napping, and to encourage everyone to see that napping as a no cost, no sweat way to improved mood and performance," Anthony said.

To learn more about National Napping Day or to find tips for participating, visit www.napping.com.