Therm-A-Rest Hyperion 20F/-6C Down Sleeping Bag

FEATHERLIGHT PACK WEIGHT AND HIGH-PERFORMANCE SLEEPING BAG

Weighing just 550 grams, the Therm-A-Rest Hyperion 20 UL Sleeping Bag is built for those who move fast and travel light through cold conditions. Designed for high-performance warmth with minimal bulk, it offers an impressive warmth-to-weight ratio for three-season missions in the mountains.

With targeted box baffled construction in key areas, it retains heat where it matters most while maintaining an ultralight feel. Premium materials and thoughtful features ensure reliable comfort without weighing you down, making the Hyperion one of the lightest bags in its class.

Storage sack and compression stuff sack included.

Explore our full range of Down Sleeping Bags here.

KEY FEATURES OF THE HYPERION 20 UL DOWN SLEEPING BAG

• Featherweight: Weighs just over half a pound, setting a new ultralight standard

• Minimal Pack Size: Packs smaller than any NeoAir® ever

• Big On Comfort: 2.5 inches (6.4 cm) of cushion for luxurious rest

• Reliable NeoAir® Construction: Triangular Core Matrix™ maximises comfort

• WingLock™ Valve: Easy inflation, quick deflation, and one-way inflation toggle