Sleep positions

I think we've see the last of Imogen sleeping like a baby - on her back, arms up at the sides of her head. She's been wriggling for a few weeks now, kicking off the cover blanket & pulling on the bottom sheet. But last night she didn't want to be on her back at all - each time I put her down (at bedtime and again after feeds at 12.30 & 4.00) she wriggled over, got her bottom hand free, stuck her thump in and went to sleep on her front. Very cute!