Yesterday, I tried perm rods and my hair came out GREAT, for the 5 hours between when it dried and when I went to bed. This morning, most of my hair looks ok, but the side I sleep on is flat. My hair dried in about 7hrs, so in the future, I'll wash my hair at night. BUT, I don't want to have to do that every night. How do I revive the curl in the morning? I've seen many ladies say they get more than one day from a set. How do you keep it looking good?