Torpor facts for kids
Some animals have periods of torpor every day. Tiny hummingbirds do. So do some small mammals, for example, rodent species (such as mice), and bats. Many small marsupial also have daily periods of torpor.
Torpor is a well controlled thermoregulatory process. It is not the result of switching off thermoregulation.
Torpor Facts for Kids. Kiddle Encyclopedia.