Tummy sleeping

So the past couple of nights every time Reef has woken up it has been because he's rolled over onto his tummy. I was wondering if he would EVER roll over and stay sleeping on his tummy because it would be A LOT easier for ME if he could put himself back to sleep on his tummy or roll back onto his back. Tonight proved to be the night for learning. I decided to let him whine it out when he rolled onto his tummy right after I laid him down. The first time he woke back up and didn't want to go back to sleep so we rocked and read a few more stories. The next time I tried it he rolled over after a few minutes of squirming and fell back asleep on his tummy. It was pretty cute. I'm now wondering what it's going to be like when he wakes up from this position because there is not much room for him to roll onto his back ( he seems to always roll to his left, maybe it's just another sign of left-handedness. Sorry, dad!) It should be interesting. I can't wait!!! :)