Until now, DD (7 weeks) has been sleeping in a Nap Nanny at night and for naps to help with reflux. And she's been sleeping in 5-6 hour stretches at night since two weeks old. Due to changes in my diet, the reflux has gotten significantly better so we're ready to transition her to her crib in her room. The problem is, she doesn't sleep well on her back. At all. Today she took a 45 minute nap swaddled on her back, which is longer than she has ever slept on her back, but I'm pretty sure it's a fluke. I do know that she sleeps very well on her side, because she's taken very good naps that way with me sitting beside her. Are there any safe sleep positioners for side sleeping? Should I suck it up and know that I'll have a couple of days of rough sleep until she gets the hang of being on her back?