You may not realize this, but a lot of the split ends and hair breakage you experience happens while you are sleeping. If you take proper care to protect hair when sleeping, you can greatly improve your hair quality, reduce hair breakage, roughness, and you may even reduce the need for heated rollers and curling irons.
Hair is very fragile when it is damp or wet. This is because the proteins in the hair, (called keratins) have a weaker bond when they are wet. When you play with wet hair, brush it, or sleep on it, the hair will stretch and become deformed instead of bounding back to its original shape. Stretching and rubbing wet hair damages the follicles and will give you broken and rough hair.
After you wash your hair, gently pat it with a microfiber towel to remove the water. You may wish to finish the drying process by using a hair dryer, but never set it on the highest heat. You should never brush your hair when it is wet, but you should use a wide-toothed comb or your own fingers to untangle it.
You can keep your hair hydrated during the night by the application of hair oil to dry hair. The oil will protect each hair follicle which will lead to less breakage and fewer split ends. If your hair tends to be dry and hard to manage each morning, protect hair when sleeping by using hair oil before you go to bed to reduce the dryness and friction while you sleep.