Review title is Bad purchase for me [SEP] Not sure these work for me. I wanted to use them at night to sleep in so my curls wouldn’t flatten out. I didn’t sleep much because it kept falling off. It’s so incredibly hard to get it on too while trying to keep your hair inside it. I felt like my hair was sliding out all night. Not sure if these will get anymore use.  I did tighten it to my head but I was afraid I’d have a mark around my head.