DD is almost 7 months and sleeps with sleepy wings. She can roll onto her tummy with the wings but not the other way (whether she has them on or not). I'm not worried about her safety in them but its been really hot here lately and I suspect that her overnight wake ups are related to weather. I tried cold turkey the other night and she woke up after the first two sleep cycles crying and waving her hands about. Has anyone got any tips?