A well-designed backpacking quilt opens up your sleep system in a way a traditional sleeping bag simply can't, and the Therm-a-Rest Corus 32°F/0°C delivers that freedom without sacrificing warmth or packability.

The Corus is filled with 650-fill Nikwax Hydrophobic Down, which absorbs 90% less water and dries three times faster than untreated down, a meaningful advantage on multi-day trips in unpredictable Canadian weather. Box baffled construction uses mesh walls to let the down loft fully, eliminating the cold spots that flat baffles can create. Full-perimeter side baffles and a snap neck closure keep drafts from sneaking in around the edges, and the shaped footbox can slip over your sleeping pad to seal out cold air at the bottom or over your feet for added warmth.

The removable SynergyLink Connectors are a thoughtful addition, attaching the quilt securely to your sleeping pad so it stays put when you shift positions in the night. They work best with standard pads up to 3 inches thick when inflated. The Corus also layers well with other Therm-a-Rest quilts, bags, or blankets for colder conditions, making it a genuinely flexible piece of kit across three seasons. RDS certification confirms the down is sourced from humanely treated waterfowl.

• Temperature rating: 32°F/0°C (three-season)
• Fill: 650-fill Nikwax Hydrophobic Down (RDS certified)
• Construction: Box baffled with mesh walls for maximum loft
• Absorbs 90% less water, dries 3x faster than untreated down
• PFC-free hydrophobic treatment
• SynergyLink Connectors for pad attachment (removable)
• Shaped footbox with dual-position versatility
• Full-perimeter side baffles and snap neck closure
• Includes stuff sack and storage sack