"Very warm" - Review of Marmot Trestles 0 Sleeping Bag: 0 Degree Spirafil

I've taken this bag out for some spring camping in Montana. The 0 degree rating is very real; I sleep warm and I have had to sleep with it partially unzipped. It's heavier and bulkier than an equivalent down bag, but it packs reasonably small in the included stuff sack. I had a little trouble wedging it into the sleeping bag compartment of my pack. It just barely fit. The DWR seems real enough to keep any condensation or moisture from penetrating into the insulation. It's a great bag for the price.
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