I will counter your lovely vision with my favourite. Christmas to me is always sunny, 25-35 degrees celcius and we play backyard cricket whilst drinking beers and after we're done go jump in the pool clothed or in boardshorts. Lunch is cooked on the BBQ and there's heaps of desserts - every family member brings either dessert or fruit.
As for night sweats, it sucks. My house is heritage listed and I can't put an A/C in it because of this. So I have a powerful dyson air tower in most rooms, leave doors open at night (in Australia we get away with not locking our doors) and try to get some air flow...