I 've been using the pink rollers that "grip your hair" for a long time, until I saw these advertised. At 75, I still have thick hair, chin length and want to keep it thick. The pink rollers seemed to collect a lot of hair %26 that hair was coming out of my head! These ceramic grip rollers are gentler %26 the bristles appear shorter, but still grip. I use a round brush to dry my 1st section and then roll that section with the ceramic roller. I use my blow dryer on that rolled section to "heat up the ceramic" and move on. Bottom line: Not losing as much hair on the roller, good selection of 3 sizes in the package I bought, I like the ceramic inside the roller - must help retain heat. Appear to be more gentle on my hair. Not sure about sleeping in them?? I plan to try slightly drying my hair and rolling and see how they do when I have the time. Overall: Happy with my purchase