For the record, this new development began at 7 weeks and 3 days of age. I suspect she weighs a bit over 12 pounds now, so maybe there's some truth to the rumors I heard that 12 pounds is some kind of milestone weight as far as sleeping is concerned. Yay! Her 2-month ped visit is later this week, so I'll soon know what size she really is.
Here are my girls, playing nicely together. Any toy of Maggie's is Charlotte's too-