my son was never comfortable in this tub. even in the sling, he would slide past the little ledge made to keep him upright. he'd end up with the plastic ledge halfway up his back. and then when he got a little bigger and we tried to use the seat...he'd slip past the ledge even worse. i do NOT recommend that anyone get this tub...it's not worth the pain and trouble. for our next child i'm going to get the safer bather...it has great reviews!!!