Andrea Spaeth, an assistant professor in the Department of Kinesiology and Health, said naps cannot be perfect substitutes for a full seven-hour rest at night, reports The Daily Targum.

“Daytime sleep is not as high quality as nighttime sleep,” she said.

Ideally, a person would get all of their sleep at night so that it would align with their circadian rhythm — one’s biological clock that outlines when and how much sleep one should have — to reach optimal sleep quality and health outcomes.