According to Reuters:
Russian bears at Moscow Zoo have finally dropped off into their hibernation slumber despite months of insomnia caused by a record mild start to winter, zoo officials said on Tuesday.[...]Bears on the packaging of Russia's famous Мишка косолапый (Mishka kosolapiy, Clumsy bear) chocolate:
"The bears have finally fallen asleep and they have not woken up yet," Natalia Istratova, a spokeswoman for Moscow Zoo, said by telephone.
"They usually fall asleep when there is continuous snow cover but despite the fact that there is no snow they are still asleep," she said.