Thanks Jacqui...I thought that too, (especially since she's wearing a helmet for plagiocephaly), but that didn't seem to work either. She does have music on that usually sends her straight off to sleep, or my singing a particular lullaby, but even those didn't work. If I lay down with her she gets all excited and wants to play. My DH suggested we take her for a drive and we just got back. Yep, she fell asleep and I carefully carried her to bed. She's been sleeping since (20 mins now!) so maybe we're in luck! Thanks for your reply.