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Winter

Best Winter Sleeping bags. Award winning and top reviewed  down and synthetic cold weather sleeping bags from Thermarest, Rab, Marmot, Nemo, Sea to Summit

$549.95 - $559.95
Packed with features needed for cold-weather camping, the Questar™ offers supreme comfort and versatility. When you need feature-packed comfort for frigid backcountry conditions, it’s time to pack the Questar 0F/-18C. Thermarest has loaded this bag with the comfort features that Therm-a-Rest bags are known for. The Thermarest SynergyLink™ Connectors integrate the bag with your sleeping pad while allowing our Zoned Insulation to keep fill where you need it most. The fit of the bag has been perfected in our onsite cold chamber to create our W.A.R.M. fit that allows room for multiple sleep positions without compromising thermal efficiency. Stuffed with water-resistant 650 fill Nikwax Hydrophobic Down certified by the Responsible Down Standard, the four-season Questar is ready for your next backcountry adventure. The Questar is offered in three sizes, and designed to fit both men and women. Compression sack and storage sack included. Weight: 1.21kg / 2.67lbs Fill: 650 fill power Nikwax Hydrophobic RDS Down Fill Weight: 820g / 1.81lbs Bag Shape: W.A.R.M. fit
$899.95
Combining 800FP goose down with heat reflective TILT technology and a GORE-TEX INFINIUM™ WINDSTOPPER® outer, the Andes Infinium offers an exceptional warmth to weight ratio ideal for expeditions in freezing conditions. Offering refuge to those exploring the world’s highest peaks and the polar regions, the Andes Infinium is packed with cutting edge tech, built to keep you warm. The Andes Infinium 800 is filled with 800g of ultra-high lofting 800FP, goose down. It is constructed using trapezoid shaped boxwall baffles, which stack together reducing cold spots and maximise the lofting and efficiency of the down inside. Reflecting heat towards the body, our TILT technology is seen as a silver sheen on this inside of the bag. Reducing heat loss by up to 32%, TILT substantially improves thermal insulation without compromising pack size, breathability, or weight. It has a mummy fit and offers a similar level of warmth to our Expedition range of sleeping bags, but in a lower bulk package. The GORE-TEX INFINIUM™ WINDSTOPPER® outer provides a robust, windproof shield against icy chills, and the face baffle and 3D neck collar cinch in snug around the face to seal in the heat. The ¾ length YKK® zip has its own internal baffle to avoid heat escaping and an angled foot box allows for a comfortable sleeping position. Hand-filled in the UK, all our down bags benefit from never having had their down compressed before use, maintaining the down’s loft and warmth. Bag Weight: 1.375 kg / 3.03 lbs Fill: 800FP European Goose Down with Nikwax Fluorocarbon-Free Hydrophobic Finish Fill Weight: 800 g / 1.76 lb Bag Shape: Wide Mummy
$549.95
The warmest in the Ascent range, the Ascent 1100 is a 650FP duck down-filled, adventure-ready sleeping bag with a recycled Pertex® Quantum outer. Designed with a comfortable wide shape, it's ideal for those buying their first down sleeping bag for extremely cold conditions. The Ascent 1100 is an extremely warm bag with a comfortable, wide mummy fit. Filled with 1100g of 650FP duck down and with space for wearing additional layers if needed, this bag can be used in seriously cold temperatures. Ideal for winter use or even as high altitude, base camp refuge. The Ascent is built with a lightweight and durable, recycled Pertex® Quantum outer fabric and recycled nylon lining. It has trapezoid shaped, boxwall baffles that stack neatly together, encouraging the hydrophobic duck down inside to loft fully and reducing the appearance of cold spots. Hand-filled in the UK, all our down bags benefit from never having had their down compressed before use, maintaining the down’s loft and warmth. The generous mummy fit with wide foot box provide a spacious feel for an easy night’s sleep, and the close-fitting neck baffle keeps the heat in when the temperature drops. It has a ¾ length main zip with a down filled baffle to keep out the draught. Practicalities are taken care of with an internal zipped stash pocket that easily fits a phone or headlamp, a cotton storage sack, and a compression stuff sack to ensure a manageable pack size and protection on the road. Exploring with a partner or want extra space? Pick up a left and a right zipped bag and you can zip them together. Bag Weight: 1.725 kg / 3.80 lbs Fill: 650FP European Duck Down with Nikwax Fluorocarbon-Free Hydrophobic Finish Fill Weight: 1.1 kg / 2.43 lbs Bag Shape: Wide Mummy
$549.95
The warmest in the Ascent range, the Ascent 1100 is a 650FP duck down-filled, adventure-ready sleeping bag with a recycled Pertex® Quantum outer. Designed with a comfortable wide shape and women’s specific fit, it's ideal for those buying their first down sleeping bag for extremely cold conditions. The Ascent 1100 is an extremely warm bag with a comfortable, wide mummy fit. Filled with 1100g of 650FP goose down and with space for wearing additional layers if needed, this bag can be used in seriously cold temperatures. Ideal for winter use or even as high altitude, base camp refuge. The Ascent is built with a lightweight and durable, recycled Pertex® Quantum outer fabric and recycled nylon lining. It has trapezoid shaped, boxwall baffles that stack neatly together, encouraging the hydrophobic duck down inside to loft fully and reducing the appearance of cold spots. Hand-filled in the UK, all our down bags benefit from never having had their down compressed before use, maintaining the down’s loft and warmth. The women’s specific shape is slightly shorter in length, narrower at the shoulders, and wider at the hips than the regular fit bag for improved efficiency. The generous mummy fit with wide foot box provide a spacious feel for an easy night’s sleep, and the close-fitting neck baffle keeps the heat in when the temperature drops. It has a ¾ length main zip with a down filled baffle to keep out the draught. Practicalities are taken care of with an internal zipped stash pocket that easily fits a phone or a headlamp, a cotton storage sack and a compression stuff sack to ensure a manageable pack size and protection on the road. Exploring with a partner or want extra space? Pick up a left and a right zipped bag and you can zip them together. Bag Weight: 1.67 kg / 3.68 lbs Fill: 650FP European Duck Down with Nikwax Fluorocarbon-Free Hydrophobic Finish Fill Weight: 1.10 kg / 2.43 lbs Bag Shape: Wide Mummy
$499.95 - $529.95
A very warm, 650FP duck down sleeping bag with a recycled, wind-resistant Pertex® Quantum outer. Designed with a comfortable wide shape, it's ideal for those buying their first down sleeping bag for use in cold, winter conditions. The Ascent 900 is a very warm bag with a comfortable, wide mummy fit. Filled with 900g of 650FP goose down and with space for wearing additional layers if needed, this bag can be used in cold temperatures. Ideal for four season use, in winter conditions similar to those in the UK, New Zealand or Scandinavia. The Ascent is built with a lightweight and durable, recycled Pertex® Quantum outer fabric and recycled nylon lining. It has trapezoid shaped, boxwall baffles that stack neatly together, encouraging the hydrophobic duck down inside to loft fully and reducing the appearance of cold spots. Hand-filled in the UK, all our down bags benefit from never having had their down compressed before use, maintaining the down’s loft and warmth. The generous mummy fit with wide foot box provide a spacious feel for an easy night’s sleep, and the close-fitting neck baffle keeps the heat in when the temperature drops. It has a ¾ length main zip with a down filled baffle to keep out the draught. Practicalities are taken care of with an internal zipped stash pocket that easily fits a phone or headlamp, a cotton storage sack and a compression stuff sack to ensure a manageable pack size and protection on the road. Exploring with a partner or want extra space? Pick up a left and a right zipped bag and you can zip them together.
$979.95
The lightest fill-weight Rab expedition sleeping bag, the Expedition 1000 is still designed for temperatures as low as -30°C. The warmest-weight bags in the Rab® range, the expedition series are designed for use on 8000m peaks and in polar environments. With 1000g of the highest quality 850FP ethically sourced European Goose Down, the Expedition 1000 is designed to offer warmth and protection in temperatures as low as -30°C. Specifically designed for expedition use, the Expedition 1000 is slightly oversized to accommodate larger Expedition clothing, and uses a combination of high quality Pertex® inner and outer fabrics. Key technical features include water-resistant linings at the head and foot to prevent water ingress, longitudinal baffles to minimise down migration, and a face baffle for improved use with a hood. The Expedition range of sleeping bags are hand-filled in Derbyshire, UK. Weight: 1.625kg / 57oz Fill: 850FP ethically sourced European Goose Down Fill Weight: 1.0 kg / 2.2 lbs
$414.95
Plunging temps don't stop when you're on the trail or car camping—that's why the Men's Never Summer Sleeping Bag is a must-have for staying warm and dry. It packs tightly into a backpack for long treks, and 650-fill-power down helps prevent heat loss on cold winter nights. Looking for more room? Open the footbox for space to stretch or zip it up for extra warmth. Unzip the extended zipper flaps on extra-cold nights for blanket-like coverage. Bag Weight: 1.78 kg / 3.93 lbs Fill: Down defender, 650+ Fill Power, Duck Down Compressed Volume: 14.2L
$424.95
Curl up in comfort with the Women's Ouray 0° Sleeping Bag. With 650-fill-power down plus a cinchable draft collar to prevent heat loss, this sleeping bag is built for overnights in temps down to single digits. The women-specific cut keeps warmth where you want it, and dual-side zips make it easy to climb in and out. Looking for more room? Open the footbox for space to stretch or zip it up for extra warmth. Unzip the extended zipper flaps on extra-cold nights for blanket-like coverage. Bag Weight: 1.74 kg / 3.84 lbs Fill: Down defender, 650 Fill Power, Duck Down Fill Weight: 1.09kg / 2.41 lbs
$239.95
When you're making an epic ascent or trek, you want a sleeping bag that will keep you comfortable when the temperatures really start to drop. Marmot has taken their best-selling Trestles Elite Sleeping Bag series and made their most sustainable sleeping bags ever, without sacrificing up-mountain performance or durability. The Trestles Elite Eco 0 Sleeping Bag is an environmentally friendly update which features Marmot Upcycle® PFC-free and recycled shell, lining, and fill. HL-ElixR™Eco Micro synthetic insulation uses a unique blend of three fibers for maximum warmth, soft handfeel, and high loft. Wave construction on top and a blanket construction on the bottom provide optimal warmth and comfort. An anatomically 3D footbox and a fold-down secondary zipper offer ventilation and easy access for this mummy sleeping bag. The Trestles Elite Series has been designed for treks where every ounce counts, so Marmot kept the lightweight and easy compressibility of the original. Bag Weight: 1.595 kg / 3.52 lbs Fill: HL-ElixREco, Synthetic Sheet Pack Volume: 22.1 liters / 1,349 ci Bag Shape: Traditional Mummy
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