Mammut Slidestop Mat

Upgrade your zzzzz's with this luxe and versatile system.
Slidestop Mat
Price $99.95


Length (inches) 72
Thickness (inches) 1



“This is the only sleeping pad I’ll ever need—for my ounce-counting backpacking trips and my weight-be-damned, luxe car camps,” says one tester. That’s because the Astro combo is a pad system that allows you to strip it down or amp it up, depending on the trip. At its heart is a 2.5-inch, full-length mattress that’s insulated with open-cell foam and packs down to about eight by four inches. Alone, it’s as comfortable and warm (down to at least 15°F) as any pad we’ve tried, with a rugged, 75-denier polyester shell that fended off abrasion even on sandpapery slickrock.

The Astro takes some lung power—and three to four minutes—to inflate, but the handy push/pull valve let’s you easily cap it for a breather. (You can also opt for the foot-powered Disco Pad Pump, which weighs 2.2 ounces and costs $40.) For trailhead throw-downs, basecamps, and drive-up campgrounds, slide the Astro into its Pillowtop sleeve. Made of open-cell polyurethane foam, it adds a pound and a half, a few inches of girth when packed, and an entirely new level of comfort.

The combo is like a portable mattress, a full 3.25 inches thick. “It turned our lumpy, rock-strewn trailhead campsite in Capitol Reef into a featherbed,” says one tester. And the price? It looks high, but consider this: If you were to buy a lightweight backpacking pad and a decadent car-camping mattress, you could easily spend more and not sleep as well. Astro: $100; 1 lb. 8 oz.; 20x72x2.5”; Pillowtop: $80; 1 lb. 9 oz.;

Extremely non-slip bottom surface and laminated Slidestop zones on top surface mean you'll stay put in the tent even for those "less than flat" campsites.

Comes with Stuffsack and repair kit
Slidestop surfaces keep you in place
Thermofoam provides great insulating qualities