"Hibernate" means to go into a deep sleep or resting state, usually during the winter season, in order to conserve energy and survive the cold temperatures. Full definition
While bears hibernate in the winter, it is not uncommon to observe them during the spring and summer. (visitporthardy.com)
Once the party's over and everyone has retreated back to their own lairs — sorry, homes — you can get down to the business of hibernating for the evening under, you guessed it, a fox - covered duvet set or blanket! (idealhome.co.uk)
Fungus is killing millions of hibernating bats in North America, and the resulting disease is spreading. (norwalkreflector.com)