for hair longer than collarbone length [SEP] i tried this with collarbone length hair and it was pretty challenging to get it wrapped effectively i ended up with some decent curls in the front but straight in the back the rod is really long too so once wrapped i had about a foot extra on each side just hangin there i don t imagine i could actually sleep with it on i think it s a good concept for someone with really long hair looking for loose curls can t little buns do that too scrunchies are really silky and cute so i ll at least keep those and use them