When carrying a true summer bag, bring a beanie and other layers that can help you keep warm if there happens to be an unexpected drop in temperature. In addition, the bag takes the generous shape and roominess of the popular Disco above, adds a 40-degree ISO Comfort rating, and slashes a significant $100 off the price (compared to the 30-degree version). Check the weather forecasts and averages of areas you’re planning to visit to gauge the conditions. There is a reason that the $200-$300 is scarcely represented—unlike footwear, outerwear, or even other hardgoods, most people keep their backpacking sleeping bag for years and years without needing to replace it. If price isn’t an issue, Feathered Friends and Western Mountaineering make some of the finest backpacking bags on the market. Kelty updated the Cosmic line for last year, with the major change being a thinner 20-denier shell fabric (the old version had a much burlier 50-denier shell). To keep weight down, the Tanager incorporates a 7 x 5-denier Pertex Quantum shell fabric that is ultrathin by any standard (you literally can see the down through the shell), but if there is any piece of gear that doesn't require durability, it's your sleeping bag. But for the warmer summer months, the Igneo can be everything you need in a backpacking sleeping bag.See the REI Co-op Igneo 25. For backpacking sleeping bags, it’s clear-cut: down insulation is the lightest insulator, which is why all of the lower-weight bags on the lists above are down-filled. Temperature rating: 28°F ISO Comfort, 16°F Lower LimitWeight: 1 lb. But again, you’d be hard-pressed to find more sleeping bag for the money, which is why it’s our top pick for 2020.See the REI Co-op Magma 15  See the Women's REI Co-op Magma 15. Temperature rating: 35°FWeight: 1 lb.Fill: 8 oz. All in all, the longstanding UltraLite is Western Mountaineering’s most popular 3-season backpacking bag and for good reason. Moreover, the bag has a DWR finish along with waterproof fabric at the hood, sides, and feet (these areas are most prone to touching moisture at the sides or top of the tent, and this is a rare but useful feature in a sleeping bag). Temperature rating: 25°F ISO Comfort, 14°F Lower LimitWeight: 2 lbs. And today’s bags offer exceptional warmth for the weight along with a range of technologies that help them stay dry and perform in a variety of conditions. of synthetic (PrimaLoft RISE)What we like: A roomy and comfortable synthetic bag.What we don’t: Bulky, although we do like the included compression sack. of 850-fill-power downWhat we like: A premium, lightweight sleeping bag for less than the competition.What we don’t: From our experience, the Magma line doesn’t run quite as warm as suggested. For around $280, you get a cozy mummy bag with a 35-degree EN Comfort rating and a reasonable weight of just 1 pound 10 ounces for the regular version. In an ideal world, you'd own 2-3 sleeping bags to choose from depending on the trip, but most backpackers start out by choosing one bag that will keep them warm at the lowest temperatures they plan to hike in. As we expect from this venerable California-based brand, the HighLite is extremely well-built, and with a listed 35-degree temperature rating, can work great for minimalist summer backpacking. Realistically, the REI Co-op Trailbreak is limited by its synthetic fill. Stock up on sleeping bags. 3 season sleeping bags are usually rated from 10 F to 32 F (-12 C to 0 C) for sleeping in around 20 F to 40 F (-6 C to 4 C). And it's a good visual for how much more insulation is required for a synthetic bag to compete with down. The bag is made from a high quality down and it is the lightest backpacking sleeping bag on our list. Backpacking Sleeping Bag Reviews #1 Outdoor Vitals Down Sleeping Bag. First and foremost, we think that you should always leave a reasonable buffer in temperature so as to not to be disappointed (and save yourself sleepless nights). One of the best ways to ensure that you will receive quality sleep while on a backpacking trip is to invest in a quality backpacking sleeping bag. Insulation. That said, we think Western Mountaineering’s shell fabrics are a little softer than Feathered Friends, which makes the UltraLite arguably the most comfortable 20-degree bag on the market. For comparison, the Nemo Forte requires 11 additional ounces to achieve approximately the same temperature rating as the down-filled Disco. And make sure to consider the R-value of your sleeping pad (more on this below), which will help to insulate you from the cold ground. What can you expect with a women’s-specific bag? Compared to the 20-degree version of the Feathered Friends Hummingbird above, the shell is slightly thicker at 12 denier but comes with a lower-quality down, and the bag also weighs 5 ounces more. You have to bring proper head coverage, which can add weight, the quilt/sleeping pad system isn’t perfect, and it takes a bit of time to set up each night. of 850-fill-power downWhat we like: Lightweight, super comfortable, and well-built. For higher-fill-power options from Marmot, see the Hydrogen series below.See the Marmot Sawtooth  See the Women's Marmot Angel Fire. Summer sleeping bags are great for warm temperatures. Specifically, it’s a measure of how much loft or fluffiness the down clusters have, and this correlates with warmth (note: both duck and goose down are measured in the same way). Despite being available for $75-$80 through most retailers, the LEEF has a host of features you usually find on premium sleeping bags: a full-length baffle along the zipper to prevent cold spots, insulation mapping that places more synthetic fill around areas prone to being cold, and an adjustable hood that cinches evenly around the face. And did we mention the incredibly small packed size? Sleeping bags are one of the “Big 3” backpacking gear items (tent and backpack being the other two) and are, therefore, one of your biggest opportunities to save weight. 2.6 oz.Fill: 12.6 oz. Nemo attempted to bridge this gap by outfitting the Forte with relatively compressible PrimaLoft RISE insulation, and we think they did a good job overall with cutting bulk. Natural goose and duck down compresses in a way unmatched by any synthetic, and it’s not even close. There are a whole lot of very expensive sleeping bags on the market that use 800-fill-power down or even higher, and there a number of budget-oriented synthetic options, but the mid-range down offerings are surprisingly limited. The advantage is that you can keep your pack lighter as these bags weigh as little as 1 pound and compress down incredibly small. The focus is on comfort: the bag is wider than a typical mummy, particularly in the elbows and knees, so side sleepers and others can roll around without feeling constrained. When it comes to backpacking and hiking trips, the quality of sleep we receive while we’re exploring the great outdoors could not be more important. Lower fill-power down and synthetic bags will be the least compressible options. Down does vary in quality, which is measured in fill power (covered below), but even a mid-grade down fill is the superior insulator. 11 oz.Fill: 17 oz. Planning your next outdoor adventure can be both exciting and a bit of pressure. What we don’t: Pricier and heavier than the Feathered Friends Hummingbird 20 above. This cuts down on weight but does make the bag more difficult to vent on warm nights, although we found it to be less of a negative than anticipated. It’s also a good idea to have some extra clothing in case you need it. Fill weight is the actual amount of insulation stuffed into a sleeping bag. Rainier, Alaska, and far-off places like the Himalaya, and it’s well worth a visit if you’re in Seattle (their new store is right across from the REI flagship). The regular size is 53 inches in terms of the hip measurement, whereas the Marmot Sawtooth and Kelty Cosmic are roomier at 57 and 58 inches, respectively. For more room, the Alpinlite is a wider version of this bag, giving you an extra 5 inches of girth in the shoulders and 4 inches in hips while only adding 2 ounces of total weight.See the Western Mountaineering UltraLite. As is the case with virtually all categories of outdoor gear, ultralight products tend to be among the priciest on the market. of 650-fill-power downWhat we like: Roomy and reasonably priced.What we don’t: Not everyone likes the pad sleeve. Marmot has been a mainstay in the world of synthetic sleeping bags for years with its varied Trestles line. Compression sacks are useful if you require a sleeping bag that will take up as little space as possible you're out on the trail, and water resistance can mean the difference between a good night's sleep and a long, cold, wet night. But for thru-hikers looking for the lightest possible option, it’s an ultralight staple and for good reason. Temperature rating: 15°FWeight: 2 lbs. Temperature rating: 20°FWeight: 1 lb. Below are the three categories of backpacking sleeping bags, with the most popular by far being the 3-season variety. What we don’t: Narrow cut with little insulation on the bottom. Fortunately, many manufacturers are moving in this direction, and it’s now the majority instead of the minority. The good news is that many manufactures make the same bag in varying widths. R-values range from 1.0 (almost no insulation) to 9.5 (winter-ready warmth). If the bag doesn’t have a women’s-specific version, you’ll often see a short 66-inch option. In addition to considerations like warmth and down fill, the cut of a sleeping bag is critical to how much you enjoy it. ECOOPRO Warm Weather Sleeping Bag - Portable, Waterproof, Compact Lightweight, Comfort with C… And with the added Down Defender treatment for water resistance, the Sawtooth is a well-thought-out and cozy backpacking sleeping bag for a reasonable $257. Further, the Anvil Horn has their latest flexible sleeve that can accommodate both 20- and 25-inch wide pads, which active sleepers who like to rotate within their bag may find restrictive (there’s probably good reason why few other manufacturers have adopted this design). Further, the bags will have a little more insulation, and often in targeted areas. In use, this means you don’t have to worry as much about brushes with moisture inside or outside of your backpacking tent. And quilts are the bread and butter of Minnesota-based Enlightened Equipment, so it’s no surprise to see their Enigma at the top of our list for 2020. Temperature rating: 30°FWeight: 1 lb. For more information, see our article on the best sleeping pads for backpacking.Back to Our Top Sleeping Bag Picks  Back to Our Sleeping Bag Comparison Table. 1.9 oz.Fill: 12.4 oz. In this category, we like the Mountain Hardwear Bishop Pass, which does a nice job putting it all together at a reasonable price. We’ve found the lightest, warmest, and most versatile sleeping bags available today and compiled them into a list of the best sleeping bags. See the Western Mountaineering HighLite. Midlayers, camping bags, and even sleeping pads are all insulated with these fill types. For 3-season use, the Hummingbird UL is one of our favorite ultralight sleeping bags on the market. Sleeping bag fabrics are usually coated with a Durable Water Repellent (DWR) or Nikwax treatment. For new backpackers and those on a budget, Kelty makes inexpensive gear that may pleasantly surprise you with its quality. Sleeping bags generally fall into one of three basic categories: summer, three-season, and winter. And this bag is both well-built and comfortable, more so than the cheaper down bags on this list. We’ve found that quilts aren’t as comfortable as mummy bags and have their downsides. When available, we've listed both the Comfort and Lower Limit in the product specs above. 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