Therm-A-Rest Boost 32F / 0C Down Sleeping Bag
*GET 50% OFF A THERM-A-REST AIR HEAD DOWN PILLOW WHEN YOU BUY THIS SLEEPING BAG*
IDEAL FOR EVERYTHING FROM HIKING TRIPS TO CAMPSITE STAYS, THE BOOST 650 OFFERS RELIABLE COMFORT FOR A GREAT NIGHT’S SLEEP OUTDOORS.
The Boost is crafted with an innovative design that allows you to customise its shape and add warmth whenever you need it, making it one of the most comfortable and versatile sleeping bags ever created. Thanks to its semi-rectangular shape, it offers much more internal space than a traditional mummy bag, giving you the freedom to sleep in any position you prefer, whether side-sleeping, curled up, or fully stretched out.
This extra space means you won’t feel restricted or cramped, allowing you to sleep soundly and comfortably throughout the night. However, with more space comes the need for more warmth to keep you cosy, and that is where the Boost really shines. Its thoughtful design ensures that you stay warm and comfortable by letting you adjust the warmth to suit your needs, making sure you get the best rest, no matter the weather conditions.
Explore our full range of Down Sleeping Bags here.
KEY FEATURES OF THE BOOST 650
-
Customisable Comfort: Choose between semi-rectangular or mummy bag shapes to suit your comfort.
-
WarmZip™ Tech: Centre zipper design reduces internal space and boosts warmth by up to 10F/6C.
-
Multi-Use Arm Holes: Easily access the WarmZip, read, play cards, or ventilate while staying snug.
-
Plush & Puffy: 650-fill RDS-certified hydrophobic down with Zoned Insulation for maximum warmth and cosiness.
-
Eco-Conscious Materials: Made with GRS-certified 100% recycled nylon, coated with PFAS-free water repellent.
-
Inclusive Sizing: Available in Small, Regular, Long, and Wide sizes for a tailored fit.
-
Additional Features: YKK anti-snag zippers, cinchable hood, draft tube, puffed draft collar, and two-way entry zipper.
Sleeping Bag Ratings explained here.
-
What's Included
Compression Sack and Storage Sack
-
size + Specifications
Weight ranges from 1 lb 9 oz (804 g) for Short to 2 lb 14 oz (1317 g) for Long Wide
Comfort temperature: 41°F (5°C) across all sizes
Limit temperature: 32°F (0°C) for all sizes
Extreme temperature: 5°F (-15°C) consistent for all
Fits heights from 66 in (168 cm) for Short sizes to 78 in (198 cm) for Long sizes
Length varies from 73 in (188 cm) to 85 in (216 cm) depending on size
Shoulder girth between 63 in (160 cm) and 77 in (196 cm)
Hip girth from 59 in (150 cm) to 75 in (191 cm)
Foot box girth is 61 in (155 cm) for all
Packed dimensions range from 8 x 6.5 in (20 x 17 cm) to 12 x 7.5 in (30 x 19 cm)
Fill weight between 12 oz (353 g) and 1 lb 5 oz (606 g)
Fill material: 650-fill duck PFAS-free hydrophobic down, certified RDS
Shell and lining fabric: 20D 100% recycled nylon ripstop
Left side zipper
Colour: Meadow Green
-
what we think
Coming soon
-
Weight
950 g
-
Fill Power
650
-
Season Rating
3-Season
-
Comfort Limit
0°C
New content loaded

"The Valley and Peak promise is built on three pillars: thoughtfully curated gear, exceptional customer service, and a genuine love for the outdoors. As an independent, family-run business, we carefully select products from a wide variety of cottage gear brands and trusted names, ensuring that each item is rigorously tested and loved by our team. Our customer service is a cornerstone of our brand, offering personalised support to help you choose and care for your gear with confidence"
Jim De'Ath, Managing Director