👉 Hibernation is a state of being asleep or inactive for an extended period, typically during sleep. It can be thought of as a type of dormancy in which animals and plants enter a state where they are not active but still take up energy from their surroundings to survive. Hibernation is often associated with the death of a living organism by starvation, such as in the case of bears or other cold-blooded mammals that hibernate during winter months to conserve energy for fledgling survival.