Often when I wake up from a good nights sleep I have a few bumps in my hair. Since I have naturally strait hair I simply dip my brush in cold water (the little bit of cold helps me wake up) run it through my hair. I do this a few times on my whole head of hair. Then I blow dry it while brushing it. No more bumps. Only takes me 3-5 minutes. Now you've got pretty fresh looking hair.