The Kelty Tru. Comfort Doublewide Sleeping Bag lets us snuggle under the stars in supreme comfort with complete control over our warmth. Underneath the top layer of the bag are two built - in blankets — one for each — for an extra layer on chilly nights. And for warmer summer nights, the top layer zips off entirely so we can sleep under only the lightly insulated blankets. The Comfort - Tuck zipper system offers even more customizable comfort by letting us unzip the bottom of the bag and stick our feet out while remaining comfortably tucked in. Kelty gave this bag an oversized shape that gives both of us a bit of personal space and even lets our pup sneak in the middle from time to time.