My baby is rolling while he sleeps onto his side (which is not a problem) or his tummy (sometimes his face is in the mattress, which is a problem).  Most of the times he cries when he ends up on his tummy, because he bumps his head on the crib.  It seems like the crib is also not big enough for him as he is rolling all over the place while he sleeps.  He is 2 weeks short of 6 months.

Anyone have suggestions?  Have you used something to discourage rolling during sleep?

Hi Janne, it sounds like what my son used to do (and still does, he's 1 now), right after he learned how to roll over. We found that there was really nothing we could do to stop him from it, as he just would NOT sleep on his back anymore. A few times in the beginning he would cry after rolling over, since he couldn't roll back onto his back, so I would go in and turn him over initially... then in a week or so he just go used to it and wouldn't cry anymore after doing it, sleeping on his side or stomach.

And he moves around so much in his crib; if we could record the nighttime sleeping, it would probably look like a crazy zig-zag pattern from all the corners of the crib, back and forth (and would probably look really funny!). I don't think that it's necessarily the size of the crib that's the problem (although it should be a full-sized crib, not a bassinet anymore), but that they like to move around still, during the sleep. I read somewhere before that some babies just like to find their way into a crib corner and sleep there for a while, before moving around again. (Don't forget that we also toss and turn in our beds, without necessarily waking up fully...)

Ultimately they have to find a way to be comfortable to sleep - and stay asleep -  in their own style, rather than the style we'd prefer them to have, as long as it's safe.