when having your hair,something we forget to do is tie it down at night this is very important 

if you want to keep your braids,natural hair,curls,locks or whatever hair style you have at the given time here are some useful tips Avoid elastic bands

Believe it or not you can do damage to your hair when sleeping. We see so many people who spend a good deal of money on great haircuts, color, and care products then turn in for the night with a ponytail 

WrappingIf you like to keep you hair sleek and straight, use the wrapping technique. Starting at apex of the head, use a brush to begin directionally arranging the hair around the head using large bobby pins to secure as you go.Upgrade your pillow case.

Your cotton pillow case can cause pulling on your hair. The best pillow cover for your hair is silk or satin. If your budget does not have room for silk or satin pillow cases, you can get the same effect by wrapping your hair in a silk or satin scarf, says Rascon.

Brush your hair out before bedOne of the best things that you can do for your hair is to brush or comb it before turning in for the night. Use a brush with natural bristles or a wide tooth comb. Brush your hair from root to tip for several minutes. The strokes help you move your scalp’s natural oils through your hair.

In conclusion you always need to take care of your hair if your looking for good results ,because sleeping can really destruct a good hair style and another tip is wear a silk scarf so that if you have oil or any other products it wouldnt be consumed