Exercises You Can Literally Do Without Leaving Your Bed

Ever have a day where you plan to get in a morning workout--but when the time comes the thought of getting out of bed feels basically impossible? Or meant to work out in the evening, but a Crown binge beckoned first... and now you simply cannot abandon those warm covers? If you still want to fit in some kind of movement, you can actually do some exercises without leaving your bed. (No, not that kind of exercise, although one study showed sex can burn about 3.6 calories per minute for women, so.....