Eli5 why grown ups do not fall down from the bed?

Question

I am wondering why small kids ( even a few years old) fall down from the bed while changing their position but bigger children /adults do not, no matter how much they move while sleeping?

In: 2276

Answer 1

Adults move around a lot less. And on those rare occasions when you move so much that the first part of yout body goes over the edge, it immediately wakes you up and you adjust your position – probably because your sense of surroundings and self-care is a lot more conditioned than as a child