The Best Why Does My Hair Get Knots So Easily Ideas. Your hair regularly sheds—sometimes up to 100 strands a day—and when it does, the strands have a tendency to lock around each other. When your hair is wet, it's more susceptible to tangles and knots, said harmon.

When you move your head around on a pillow, you may be chafing your hair follicles and creating knots in your hair. Gently gathering your hair in a braid or pineapple updo will keep you from sleeping directly on top of it,. A satin pillowcase may help keep your hair smooth while you sleep.