Rab Hypersphere Sleep Mat

The Hypersphere Ultra features an impressive R-value of 7.3, which provides significant thermal resistance against frozen ground. Its 800-fill power goose down insulation is specifically designed to trap heat and prevent convection currents, making it a reliable choice for extreme alpine environments.

The 800-fill power European goose down is treated with a Nikwax Hydrophobic finish. This treatment helps the down resist moisture absorption, ensuring it maintains its loft and insulating properties even in humid conditions or if condensation builds up inside the mat.

Not at all. The included pump sack is designed for rapid, hygienic inflation, allowing you to fill the mat without introducing moisture from your breath into the down insulation. It connects easily to the low-profile valve, making setup quick and straightforward.

The mat features oversized outer chambers that act as rails to keep you centered. This hybrid rectangular shape balances weight savings with stability, helping you stay securely on the pad while you sleep.

It is constructed from 20D recycled polyester with a TPU coating, which offers a strong balance between weight and durability. While it is lightweight, it is built to withstand the rigors of alpine expeditions, and a repair kit is included for any unexpected trailside fixes.

No, this mat does not have an integrated pillow. You will need to bring a separate inflatable or stuff-sack pillow to complete your sleep system.