Kitty's right Ali! I recall one year about 1995 when I was in my three-seasons sleeping bag plus a blanket and a blow-up lilo underneath and another blanket over the top and had clothes on and I was still freezing!
The mist was rising from the stream ... it was freezing fog in Sept and the Irish whiskey gave only temporary relief. In fact the more you drank, the colder I got ... I wasn't even sharing the sleeping bag with someone warmer ...
Ughhhh! It still makes me shivver just thinking about it. So let's pray for no wall-to-wall sunshine during the daycloud cover at night and cloud cover at night.

Bright morning star's arising ...
Alan