Therm-a-Rest Down Pillow Review

Overview

The Therm-a-Rest Down Pillow is less a pillow than a pillowcase made of down: a cinch-corded shell of 650-fill hydrophobic down that straps onto a stuff sack of spare clothing. It was built for backpackers who want the feel of a real pillow without carrying an inflatable one. The trade-off is that the user supplies the structure, and the down on its own is too thin to do the job. Therm-a-Rest discontinued it as of Spring 2020, so it now turns up mainly on the used market.

Key Specs

Spec	Detail
Weight	About 113 g (roughly 4 oz)
Fill	650-fill Nikwax hydrophobic down
Cover	Brushed polyester
Closure	Cinch cord
Storage	Built-in stuff bag
Category	Topper-style pillow (needs a stuff sack or clothing as a core)
Status	Discontinued, Spring 2020

Performance

Comfort. The down is the point. Outdoor Gear Lab’s testers gave it above-average comfort marks, citing the unmistakable feel of down against the face and a silky polyester shell. Comfort improved considerably once the pillow was combined with a stuff sack holding a fleece jacket and a down puffy. Adventure Rig’s reviewer called it the most comfortable pillow he had used, though he allowed it wasn’t the lightest or most packable.

Support. This is the weak point. The same Outdoor Gear Lab testers found that the thin shell let the down compress quickly overnight, leaving less padding under the head than they wanted. The down contributes softness, not height, so the pillow is only as good as whatever is inside the stuff sack. Side sleepers who need real loft will have to pack a lot of clothing. Others pair it with a small inflatable pillow, which a Trailspace reviewer found added a meaningful layer of comfort on top of the air cushion.

Weight and packability. At about 4 oz, the pillow is light by any standard but one: inflatables. Outdoor Gear Lab rated it above average for weight and compressibility, then noted that inflatable pillows beat it on that measure. Trailspace’s reviewer called it fairly bulky for a light backpacker, and on longer trips she kept leaving it behind. Packing it means one more item with its own stuff sack.

Ease of use. The built-in storage bag makes packing and unpacking simple, and Outdoor Gear Lab scored ease of use as average. The cost is the nightly routine. Testers said the system needs some trial and error to find the right mix of clothes and jackets, and it adds a step of digging through the pack at bedtime. A damp fleece or a stiff rain shell inside the sack makes for a lumpier night than a purpose-built pillow would.

Weather. The Nikwax hydrophobic treatment is marketed as helping the down dry faster and resist moisture, a modest benefit for a pillow that will pick up a fair amount of face and hair moisture. The cover is not a waterproof shell, so the pillow still needs to stay inside the tent.

Where it works best. Reviewers consistently point to short trips, car camping and travel as the best fit. A reviewer at Adventure Rig, who was not concerned about weight, rated it highly. A Trailspace reviewer made a similar case, saying it suited the car-camping nights that often come before a backcountry trip.

Pros & Cons

Pros

• Soft down against the face, with a silky brushed-polyester cover
• About 113 g, light for a pillow with real comfort
• Cinch cord lets users adjust firmness by changing what goes inside
• Hydrophobic down is more forgiving of moisture than untreated fill
• Built-in stuff bag; reviewers found it easy to pack

Cons

• Needs a stuff sack of clothes or an inflatable pillow to work
• The thin shell lets down compress overnight, so support fades
• Heavier and bulkier than inflatable pillows
• Setup takes some fiddling every night
• Discontinued, so buyers are limited to used or leftover stock

Who Should Buy This

This suits backpackers who already carry spare clothing, sleep on their side or back with modest loft needs, and care more about how a pillow feels than about shaving ounces. It also works for car campers and travelers who want something compact. Gram-counting thru-hikers, people who want a pillow that works straight from the sack, and heavy side sleepers who need firm height should look at inflatable pillows or a current down-topped inflatable instead.

Verdict

The Down Pillow is a pleasant, clever idea with a limited role. It earns its 4 oz on short trips and car-camping nights, but long-distance ultralighters will find that it adds fuss and bulk and that the down loses support overnight. A good idea, but a narrow one, and now one that is hard to buy new.