Eureka Horse Creek 20°F Sleeping Bag - Mummy, Synthetic

Took this bag for a weekend trial run in Bryce Canyon in early October. The first night the low hit 17 degrees F and I was cold - but adding a liner and another fleece layer made me toasty warm. The second night I started out with all of the layers - and the wind tried to carry my tent away - but I woke up at 2am overwarm and had to get rid of my extra layers and then some. Found out the low that night only hit 34. So, great even below 20, if you're willing to add a little extra; great wind resistence; and plan to sleep in your underwear if the temp is above 35 and you need to keep the bag closed. Compression straps built into stuff sack design works well. Weight and size felt great.