How do they fall asleep like this?

I go in and look at Adalynn and Lili every night before I go to sleep. I’m sure I’m not alone there…don’t most all parents do that? 🙂 Anyways, we always find Lili in funny positions but this time it was Adalynn’s turn. I just wonder how on earth she can actually sleep like this…I moved the stuff and she stayed sleeping. So funny!