Is the Corus warm enough for freezing nights?

It is rated to 20F (-6C). Most owners are comfortable at that rating with a warm pad and a hat, since there is no hood.

Does it come with a sleeping pad?

No. The quilt attaches to your own pad with the included straps, so pad warmth and R-value matter for the overall rating.

How does it compare with a mummy bag?

It is lighter and less restrictive, and opens flat as a blanket. A mummy bag seals better around the head and edges in deep cold.

Can I use it as a blanket at home or in a tent?

Yes. The quilt opens flat, so it works as a camp blanket in mild weather.

What fill does it use?

650-fill Nikwax Hydrophobic Down, which is treated to resist moisture and retain loft when damp.

Where is the Corus 20F/-6C Down Quilt cheapest?

At Cascade Designs, for $309.95, as of our latest check.

What do buyers say about the Corus 20F/-6C Down Quilt?

Rated 4 out of 5 from 24 ratings.

Therm-a-Rest

Corus 20F/-6C Down Quilt

Best price now

$309.95at Cascade DesignsChecked Nov 9

Prices are checked against each store and labelled with when.

Visit Cascade Designs

Therm-a-Rest

Corus 20F/-6C Down Quilt

Best price now

$309.95at Cascade DesignsChecked Nov 9

Prices are checked against each store and labelled with when.

Visit Cascade Designs

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Price facts

Last seen at $309.95 at Cascade Designs on Nov 9.

Our take on the Corus 20F/-6C Down Quilt

The Corus is Therm-a-Rest's ultralight backpacking quilt, rated to 20F (-6C) and filled with 650-fill Nikwax Hydrophobic Down that resists moisture. It uses a strap system to attach to a sleeping pad instead of a full-length zipper and hood, which cuts weight and bulk versus a traditional mummy bag. It suits weight-conscious backpackers and side sleepers who move around at night. Against rivals like the Enlightened Equipment Revelation, it is heavier and less customizable but simpler to set up and more widely available.

Best forUltralight backpackers counting gramsSide sleepers who dislike mummy bagsThree-season camping and thru-hikingCold sleepers who want a hoodless quilt with a pad strap system

Pros

650-fill Nikwax Hydrophobic Down stays warm when damp
Pad strap system keeps the quilt in place without a full zipper
Lighter and more packable than a comparable mummy bag
Opens flat for use as a blanket in warmer weather
Draft collar and insulated footbox seal in warmth

Cons

No hood, so a warm hat is needed in cold conditions
Strap attachment takes practice to dial in
Heavier than cottage-brand quilts at the same temperature rating
Some sleepers report cold spots at the edges on very cold nights

Corus 20F/-6C Down Quilt prices at every store

Cascade DesignsNew
In stockReturn policy
$309.95Checked Nov 9
Visit Cascade Designs

What reviewers say

4 / 524 ratings

Owners rate the Corus well, praising its warmth-to-weight ratio and the hydrophobic down for damp trips. Complaints center on the strap system and edge drafts in near-freezing weather.

What people mention

WarmthPraisedOwners say it keeps them warm down to its rating when paired with a good pad.
WeightPraisedReviewers like how little it weighs and how small it packs.
Strap systemMixedSome find the pad straps secure, others call them fiddly to adjust.
DraftsCriticisedA few report cold air creeping in along the edges on freezing nights.
MoisturePraisedThe hydrophobic down is said to hold up well in damp, humid conditions.

About the Corus 20F/-6C Down Quilt

The Corus is a down backpacking quilt designed to save weight and keep you comfortable in the backcountry. It has a 20F/-6C temperature rating.

Temperature rating: 20F / -6C
Insulation: Down
Type: Backpacking quilt

Questions and answers

Is the Corus warm enough for freezing nights?: It is rated to 20F (-6C). Most owners are comfortable at that rating with a warm pad and a hat, since there is no hood.
Does it come with a sleeping pad?: No. The quilt attaches to your own pad with the included straps, so pad warmth and R-value matter for the overall rating.
How does it compare with a mummy bag?: It is lighter and less restrictive, and opens flat as a blanket. A mummy bag seals better around the head and edges in deep cold.
Can I use it as a blanket at home or in a tent?: Yes. The quilt opens flat, so it works as a camp blanket in mild weather.
What fill does it use?: 650-fill Nikwax Hydrophobic Down, which is treated to resist moisture and retain loft when damp.
Where is the Corus 20F/-6C Down Quilt cheapest?: At Cascade Designs, for $309.95, as of our latest check.
What do buyers say about the Corus 20F/-6C Down Quilt?: Rated 4 out of 5 from 24 ratings.