Sierra Designs 20-Degree Quilt

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UOG TOP PICK – for Cold-Weather Minimalists: With high-loft 1000-fill down, smart baffle design, and sub-600g weight, this quilt delivers serious warmth for shoulder-season missions, without the bulk.

Hyperlite Mountain Gear says: 

Loaded with 1000-fill power down and sewn into a durable 7d micro ripstop nylon exterior shell, the 20-Degree Quilt is warm, comfortable, incredibly light, and highly packable. One of our two quilt offerings, the 20-Degree Quilt is the perfect ultralight backpacking quilt for cooler, shoulder-season temperatures.

Our Verdict

Hyperlite Mountain Gear’s 20-Degree Quilt hits a sweet spot for minimalist sleep systems in colder conditions. At just 579g for the regular size, it delivers reliable warmth thanks to 398g of 1000-fill down that lofts quickly and resists collapse in damp air. The three-dimensional baffle construction means that down, and therefore heat, stays where it should. The footbox is stitched shut, which cuts out draughts, but does limit venting if you’re prone to overheating.

The shell fabric is incredibly light, but it’s thin enough that I’d be extra cautious with it around rough ground. The pad attachment system is simple and functional. There’s just enough room across the shoulders for a relaxed sleep without feeling restricted and the neck closure is well designed and does a good job of sealing in warmth.

One thing that’s a little disappointing is that the quilt doesn’t come with a dedicated stuff sack, which feels like an oversight.

You’d need a well-insulated mat to push this to its claimed -6°C, I’d be comfortable using it to around -1. It would be good for spring and autumn trips where pack weight matters, but comfort can’t be compromised.

– Reviewed by Ultralight Outdoor Gear

Features

• Pair with a 10L Side Entry Pod for maximum, space-saving packability
• Includes large volume storage sack for long-term storage at home.
• 3-Dimensional Baffles allow for maximum lofting while also locking down into place, minimizing down-migration
• 1000 Fill Power Grey Goose Down treated with a DWR finish for loft retention
• 3 Low-Profile center push clips, coupled with the neck drawcord help reduce drafts and lock-in warmth
• 4 sewn-in loops provide additional lashing points for securing to a sleeping pad
• Comes with 2 separate pad attachment straps that match up to the clips on the quilt. Allows for securing the quilt to a sleeping pad, further minimizing drafts for active sleepers
• 7D micro-ripstop nylon shell and lining is durable, extremely light-weight, and provides excellent air permeability for maximum compression

Specifications

Regular

• Weight: 579g
• Interior Length: 72.0″ | 182.9cm
• Shoulder Width: 58.0″ | 147.3cm
• Footbox Circumference: 42.0″ | 106.7cm
• Fill Power: 1000 FP Down w/ C0 DWR
• Fill Weight: 14.0oz | 398g

Long

• Weight: 636g
• Interior Length: 80.0″ | 203.2cm
• Shoulder Width: 62.0″ | 157.5cm
• Footbox Circumference: 44.0″ | 111.8cm
• Fill Power: 1000 FP Down w/ C0 DWR
• Fill Weight: 15.2oz | 432g

Material & Construction

• Material – 7D Micro-Ripstop Nylon treated with a C0 DWR
• Insulation – Grey Goose Down treated with a DWR finish for loft retention

Help & advice:

• The Ultimate Guide to Lightweight Sleeping Bags
• Time-Saver Guide to Choosing a Sleeping Bag
• Why Choose a Backpacking Quilt?
• The Ultimate Guide to Ultralight Backpacking Quilts
• All About Down
• Responsible Down Standard
• Ethical Down