It is known that bats belong to those animals that spend winter in hibernation. However, this is not a sleep that we use every night. The period of hibernation is the time when the weather is cold, there are no insects and there is nothing to eat for bats, and just to survive in such a difficult time, they make lower body temperature, slow down the heartbeat and start to breathe slowlier. At this time, animals are almost not moving and are very defenseless. And it’s is at this time they get to the Center for rehabilitation. During repairs, people find almost immovable animals, and sometimes they do not even notice that they are alive.