Fellow lazy friends, rejoice: It turns out, making your bed may be doing more harm than good.

A recent study has proven that, at any given time, there are an average of 1.5 million microscopic insects called dust mites living between your sheets. These tiny, beetle-like creatures feed off human skin cells and require a warm, damp atmosphere to survive and thrive.

When we sleep, we sweat. A lot. Rumour has it, the average person may sweat up to a litre of fluid per night. This creates an ideal breeding ground for the mites, who will begin to hump like crazy and deliver their creepy, eight-legged offspring.

That is, unless you leave your bed unmade. Problem solved.

One researcher, Dr. Stephen Pretlove from Kingston University School of Architecture, offers a simple explanation. When you make your bed, especially immediately after waking, you’re trapping your body heat, your skin cells, and most importantly, your sweat, all over the bed. But leaving the bed unmade exposes the sheets to air and light, drying them out and depleting the mites’ lifelines.

Dr. Pretlove explains:

“We know that mites can only survive by taking in water from the atmosphere ing small glands on the outside of their body…Something as simple as leaving a bed unmade during the day can remove moisture from the sheets and mattress so the mites will dehydrate and eventually die.”

So there it is, rejoice; you don’t have to defend your laziness anymore!