Hypersphere 9.5, Wide Long

The Hypersphere 9.5 is the result of our 40 years of down mastery combining with the technologies we’ve honed for our lightweight sleep mat collection. This thick, ultra-warm down-filled sleep mat offers unmatched comfort and insulation for when you’re hunkering down at high altitudes or on expeditions to polar regions. With a hardwearing fabric and uncompromisingly comfortable design, it’s rugged, versatile, and adapts easily to remote and challenging environments.