Ryan rolled for the first time (from back to front) when he turned 3 months old. But now at 4 months, he has become a rolling machine! He rolls to his tummy frequently when he is on the ground playing. There are only 2 problems with this. 1. He hates being on his tummy. I find it very funny that a baby that hates tummy time is very quick to roll onto it! 2. He rolls to his tummy in the middle of the night so I am frequently waking up to roll him back over. Once he gets older and stronger I will just let him stay on his stomach. Here is a video of his playtime and rolling attempts!