It’s no joke. Napping is now a form of exercise. A U.K.-based fitness chain is about to make that daydream a reality with “napercise,” a group class in which participants quite literally nap for 45 minutes.

Imagine having beds instead of stationary bikes. Participants of the class will find single beds, “atmospheric” sounds and a temperature which promotes calorie burning during sleep. The class will take place in the mid-afternoon.

Health.com reports:

While the concept may seem silly, the motivation for the class is no joke. The idea came about after a David Lloyds Clubs survey found that 86% of parents struggle with fatigue, and 26% generally get less than five hours of sleep a night.

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