Sleeping sitting up

Recently Elisabeth's sleep habits have been morphing. The past three days she has taken an afternoon nap in the stroller. (This picture was taken yesterday. Elisabeth fell asleep when we were out in the stroller, so I pulled into a coffee shop to sit and write while she slept. She slept for an hour an a half, then sat up, leaned her head over the side of the stroller, and fell asleep again!) Unfortunately, her daytime naps haven't helped nighttime sleep, which means I nearly always look forward to my cup of coffee in the morning.