might be a solution

For the last few years, I've had my hair in a braid (or two or ten)when I go to sleep. Depending on how many braid you put in, your hair can be tangle free and relativly straight (one fat braid) or wavey and tangle free (several braids). Also, a simple bun takes a shoulder length braid and brings it aroung like a "C". Then put on a scrunchie or whatever. Hope this helps who ever!