Why do bats sleep Upside down?

I have no idea why they sleep upside down, except that they hang from their talons/claws from inside places. They like to sleep in caves and such.

I have seen and touched a bat. We had one in our house when I was a kid, and we trapped it between the window and the screen. once it was trapped, it looked nothing more than a mouse with wings. it was actually kind of cute.

EEk!Touch a bat?Who would want to do that unless they were bat lovers? I have no idea why they sleep upside down but I know they do it when they are resting or asleep.

Bats always sleep upside down hanging from a high and secluded spot. The biological characteristics of bats make it necessary for them to sleep in this fashion. Bats cannot launch themselves into flight from the ground, like birds do. This is because their wings are not as powerful as that of the birds and they cannot produce the necessary lift for starting a flight. The hind legs of bats are also not strong or developed making it possible for them to run and gain the momentum for flight.

Hanging upside down gives bats an ideal position to take off into a flight when necessary. They can just let go and on their fall through the air they will get the necessary momentum for taking off into flight.

Hanging upside down also hides the bats from predators. Besides, they don't have to exert any energy to hang upside down because of the unique way their talons are formed. It is just their weight on the talons that keep it closed around the surface where they are locked. As long as the bats are relaxing in this position, the talons cannot open and the bats will not fall off.