National Napping Day is an unofficial holiday observed in the United States on the Monday following the daylight saving time change in March. It was first observed in 1999 as an effort to promote the health benefits of taking a nap during the day. The idea behind the holiday is that losing an hour of sleep due to the time change can be difficult for some people, and taking a nap during the day can help them to adjust and feel more alert.

While the holiday is not specifically focused on babies, it is a good reminder of the importance of healthy sleep habits for people of all ages, including infants and young children. Napping can be a great way to help babies and young children get the sleep they need during the day, which can in turn improve their mood, behavior, and overall well-being. Adequate sleep is essential for healthy growth and development, and parents should prioritize creating a safe and comfortable sleep environment for their babies and establishing consistent sleep routines.