My 14 week old baby just figured out how to roll over this weekend! Now that she has a new trick, she likes to practice it all the time. For the past two nights we put her down to sleep on her back, as we have all along, and she eventually flips onto her side to sleep. Occassionally she'll flip herself over onto her tummy, which she does not like at all - usually ends up crying until one of us comes and flips her over, then she returns to the side position.

At 3 months old is it safe for her to be side sleeping? Obviously she's comfortable in this position but I don't want to raise her risk of SIDS. Do you think I need a sleep positioner or just let her be?