The air pad measures 20x78x2.5. The pad is insulated and does a fantastic job. I live in texas and a 15 degree bag does not get used much. I always stored the bag laid flat and never compressed. I will include the storage bag for the sleeping bag and also the bag for the sleeping pad as well as the unused patch kit. This bag is in amazing condition and will make someone a great bag. It has no stains or tears, it also comes from a smoke free home and has no smells. Feel free to ask any questions! Getting the right sleeping bag for a fall backpacking trip can be tricky. A 30-degree bag doesn’t provide enough insulation, while a 0-degree bag can be overkill. But the 15-degree big agnes crater down mummy bag is just right for your autumn adventures. Big agnes stuffed the crater sleeping bag with 600-fill goose down and engineered it to lock out drafts, so you stay toasty warm in the brisk air. The crater does not have any insulation on the underside, but features a sleeve for your big agnes mummy pad (insulated pad included). This integrated system prevents you from rolling off your mat as you sleep and cuts down weight. It also cuts down space in you pack since you can leave the pad in the crater’s sleeve, roll them up together, and stuff the whole mess into the included sack. The one-way ticket to a comfortable night of rest in the backcountry, this package from big agnes features the long cozy crater mummy sleeping bag engineered for a comfort rating of 15°f thanks to 600. The crater bag is joined by a sleeping pad, boasting. Low-bulk insulation that keeps the cold ground from keeping you up at night. Sleep system removes insulation on the back to make room for the included sleeping pad. Versatile 15°f comfort rating. Engineered to lock out drafts. Fill weight: 15 oz. Sand mountain insulated pad description. Primaloft® insulation makes this 3-season pad a smart choice for added comfort and warmth on backpacking and camping trips. Thick pad is waterproof and lightweight, and packs down to the size of a nalgene water bottle. Tough 50-denier nylon fabric protects against abrasion and punctures; durable water repellent coating sheds water and stains. I-beam construction allows air to flow freely between chambers for constant support and comfort; prevents insulation from shifting. Comfort range to 15°f. 4.5 x 14.5 inches. 11.4 x 36.8 centimeters. I hope that helps. Sorry for the confusion!The item “Big Agnes Crater Sleeping Bag 15 Degree Down With matching inflatable pad” is in sale since Sunday, March 01, 2015. This item is in the category “Sporting Goods\Outdoor Sports\Camping & Hiking\Sleeping Gear\Sleeping Bags”. The seller is “cannondale4″ and is located in Lubbock, Texas. This item can be shipped to United States.