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Slim, simple, and effortlessly light, this quilt makes an ideal companion for warm-weather miles when you want to move fast and sleep light.
Hyperlite Mountain Gear says:
Loaded with 1000-fill power down and sewn into a durable 7d micro ripstop nylon exterior shell, the 40-Degree Quilt is warm, comfortable, incredibly light, and highly packable.
One of our two quilt offerings, the 40-Degree Quilt is the perfect ultralight backpacking quilt for milder in-season temperatures.
Our Verdict
Hyperlite Mountain Gear’s 40-Degree Quilt shares the same premium build as its colder-rated sibling, but it’s made for mild summer nights. Weighing just 471g in the regular size and filled with 251g of 1000-fill down, it offers an impressively compact sleep system without cutting corners on quality. The 7D nylon shell is whisper-thin, though it does need some care. Sewn-through baffles keep things minimal and are perfectly suited to a summer bag.
The footbox is stitched shut, which cuts draughts effectively, and the familiar clip-and-strap system attaches neatly to your mat. Setup is quick and straightforward, and the neck drawcord seals without fuss. There’s just enough room across the shoulders for a relaxed sleep without feeling restricted. One thing that’s a little disappointing is that the quilt doesn’t come with a dedicated stuff sack, which feels like an oversight.
I’d be happy using it to 4°C. It would be good for low-elevation summer trails or hut-to-hut fastpacking where you want the lightest possible pack without sacrificing a good night’s sleep.
- Reviewed by Ultralight Outdoor Gear
Features
- Includes large volume storage sack for long-term storage at home.
- 1000 Fill Power Grey Goose Down treated with a DWR finish for loft retention
- Sewn Footbox
- 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
- Spacious / Oversize
Specifications
Regular
- Weight: 471g
- 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: 8.9oz | 251g
Long
- Weight: 467g
- 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: 10.1 oz. | 285g
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
