I've been trying to get Kaci to sleep on her back in her pack'n'play. I think it would help her sleep better. She's been sleeping in her car seat because of that nasty reflux she used to have. Now that she's over it, there is really no need to sleep in her car seat. She doesn't seem to like sleeping on her back very much. I keep trying though. The longest she'll sleep is 2 hours in her pack'n'play. I've spent a few nights helping her get comfortable. I think she has decided she's had enough. Before she fell asleep in her car seat while out for a stroll, she gripped on to the side of it, so I couldn't move her into her pack'n'play. She thinks she's so smart!