Rab Stratosphere Sleep Pad

With an R-value of 3.8, this pad is designed primarily for three-season use. It will keep you comfortable during spring, summer, and autumn, but it is not insulated enough for freezing winter temperatures or sleeping directly on snow.

The included pump sack uses ambient air to inflate the pad without introducing moisture from your breath, which helps prevent mold growth inside the insulation. While you can technically inflate it by mouth, using the sack is significantly faster and protects the pad's longevity.

Yes, the rectangular shape provides consistent width from head to toe, which is often preferred by side sleepers who need extra room for their knees. The 3-inch thickness also offers enough cushion to prevent your hips or shoulders from bottoming out against the ground.

The Stratosphere is built with 75D recycled polyester, which is a relatively robust fabric for a sleeping pad. It is designed to withstand the rigors of backpacking and weekend camping, though you should still clear your campsite of sharp rocks or sticks before setting up.

The outer chambers are slightly larger than the inner ones to create a subtle cradle effect. This design helps keep you centered on the pad throughout the night, preventing you from rolling off the edges while you sleep.