I've used a Wiggy's sleeping bag for decades and it's kept me alive in more conditions than I expected to experience.
Wiggy's – The World's BEST Sleeping Bags, Outdoor Gear & Clothing
My bag is a dual bag similar to these:
-20 Degree F (-60o FTRSS) Rated Ultima Thule Sleeping Bags by Wiggy's.
From a dry hunting cabin to an arctic survival training exercise over 3 days where we saw a high of -10F this bag did its job well.
As others have said, keeping yourself comfortable, clean, fed, and hydrated goes a long way to enjoyment.
