There is no difference between the two.
Hair wearers don't experience anything more or less 'dishevelled' than any one else would.
The extent of the 'dishevelment' will depend upon how you sleep, what product you have in your hair and the fabric you rest your head upon and therefore that will vary from person to person.

This is applicable to any one with hair, natural or otherwise and there is no 'one rule fits all' and hair wearers don't experience this any differently to anybody else.