They are called Hibernators :D
The technical term is - a Somnambulist.
Hibernation
Decidious
winter solstice
endangered?
No, the term hibernate only refers to land animals.
Adolescent; Mature
hibernation
When animals go to sleep in wintery season they are said to hibernate. Answer from S.S.Mann
Gladiators.
gladiator
I don't know all of them, but i know that hedgehogs, tortoises and some species of voles do. By the way, the proper term for long winter naps is Hibernation! Hope this is helpful. :-)