Nothing to do with the cold but about sitting for a long time in the stand. As I got older I lost some padding on my backside and I learned while duck hunting sitting in a boat on a hard seat you need something to sit on, a boad cussion gets as hard as the seat after a while . My buddy and I bought innertubes for for lawn tractor rear wheels. They work well bit only inflate them to the point that the top and bottom does not touch, takes some trial and error but when you get it right it allows a longer sit between standing up.

The more I get to know people, the better I like dogs, life is short, eat dessert first.