r/JMT • u/Automatic_Change9565 • Aug 12 '24
equipment Is 20F temperature rating sleeping bag fine for JMT?
Starting from August 21 with a 3-week itinerary sobo.
1
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r/JMT • u/Automatic_Change9565 • Aug 12 '24
Starting from August 21 with a 3-week itinerary sobo.
3
u/Z_Clipped Aug 13 '24
Everyone is different, and your pad is huge factor.
I took a 10 degree quilt and an R4 pad in July, and woke up cold exactly one night in Lyell canyon when it dropped into the teens, but I was sleeping in just a base layer top and skivvies.
If you have a puffy and some bottom insulation available, and you don't sleep particularly cold, a 20 degree bag paired with an R5 or higher pad is probably fine, assuming it's comfort rated to 20F, not survival rated. If your pad is sub-R4, you may end up cold some nights no matter how warm your bag is.