It has a slot to slide a sleeping pad into so the pad doesn't shift around. Everytime ive used it I've had to get out and sleep on top of it. It's also very spacious. The item "Big Agnes Mystic SL 15 Degree Sleeping Bag" is in sale since Wednesday, October 28, 2020.This item is in the category "Sporting Goods\Outdoor Sports\Camping & Hiking\Outdoor Sleeping Gear\Sleeping Bags". The seller is "gr8sales123" and is located in Granada Hills, California. This item can be shipped to United States.