Not in their southern range but across the sub-arctic, Alaska, Canada, Finland, Russia. No primate hibernates as far as we know. But if not, how does bigfoot cope with extreme cold? There are many reports of bigfoot from the "Headless Valley" in Canada which is northwest of Edmonton. The Russian version of bigfoot is reported in their coldest region in Siberia and the people there say bigfoot hibernates.
No known primate hibernates but evidence has been presented of Neanderthal hibernation.
https://www.sciencedirect.com/science/article/abs/pii/S0003552120300832#
Neanderthals did inhabit the arctic in the western Urals.
So where do you stand on this? Does bigfoot hibernate in coldest regions? If not, how does bigfoot survive that kind of winter?