Therm-a-Rest on Twitter: "When you bring a Hyperion 32F/0C sleeping bag--though you might not feel it because it weighs 1lb (0.46kg)--you're bringing performance ready for the trail, wherever it may take you.
Therm-a-Rest Hyperion 32 Review | Tested by GearLab
Thermarest Hyperion 32 UL Down Sleeping Bag | UK | Ultralight Outdoor Gear
Review: Therm-a-Rest Hyperion 32F Sleeping Bag - The Big Outside