It's not weightless, but the three-season, 440g Therm-A-Rest Vesper 32 Quilt feels pretty darn close.

Built to provide a featherlight pack weight and high-performance warmth, the Vesper 32F/0C quilt thrives during ultralight, backcountry adventures. The Therm-A-Rest Vesper 32 Quilt uses thermally-efficient box baffled construction to ensure warmth and comfort in an ultralight package. Designed with high-quality materials and Therm-a-Rest performance features, a snap neck closure, perimeter side baffles and an insulated footbox provide warmth and comfort in the backcountry. When compared to sleeping bags, the Therm-A-Rest Vesper 32 Quilt save weight and pack smaller by utilising the warmth of your insulated mattress. Storage sack and compression stuff sack included.

• 900-fill Nikwax Hydrophobic Down™:

  Stays drier and maintains loft 60 times longer than untreated down.

• Unrivalled Packability:

  Lightweight materials and precise design allow for a smaller packed size than ever before.

• Box Baffled Construction:

  Uses mesh walls to maximise loft and minimise cold spots.

• SynergyLink™ Connectors:

  Integrate the bag with a mattress for optimal efficiency and comfort; removable for versatility.

• Draft Protected:

  Perimeter side baffles, snap neck closure and insulated footbox eliminate unwanted drafts.

• Responsible Down Standard Certified:

  Certification that ensures that the waterfowl in the down supply chain are treated humanely.