Ridgeline sleeping bags are designed for users whose utmost concern is performance. Each bag has a slim silhouette which provides the best thermal efficiency. The improved design includes a performance-style fully sculpted hood, unique triangular draft tube, and an angled trapezoidal foot section. The bags are constructed with an "uphill" shingle method which naturally increases loft as the bag is pulled over the shoulder, and more loft means greater warmth. Overall, this series provides the most thermal efficient design.
Pack Size: 9.5 x 13.0 in.Sleep comfortably and warmly in the Coleman Exponent 8439A500 Ridgeline mummy-style sleeping bag, which offers a highly efficient thermal design and is temperature rated to 20 degrees Fahrenheit. It features a slim silhouette that provides optimal thermal efficiency, a performance-style fully sculpted hood, unique triangular draft tube, and an angled trapezoidal foot section. The Ridgeline is constructed with an "uphill" shingle method, which naturally increases loft as the bag is pulled over the shoulders (more loft means greater warmth). Other features include:
- ZipPlow: Prevents zipper snags by plowing fabric away from zipper
- FiberLock: Prevents insulation from shifting, increasing durability
- ThermoLock: Reduces heat loss through the zipper, keeping you warmer
- Zipper Glide Tailoring: Allows smooth zipper operation around the corner
Specifications:
- Temperature rating: 20 degrees Fahrenheit
- Total size: 33 by 85 inches
- Pack size: 9.5 by 13 inches
- Pack weight: 3 pounds, 10 ounces
- Construction: Ripstop nylon cover and nylon liner
- Fill: 38.2-ounce Polarguard HV
Amazon.com Sleeping Bag Guide
Sleep Well: Finding the Right Sleeping Bag
Sleeping bag technology has come a long way from the days of cowboy bedrolls. These days, there are a number of high-tech materials and designs available to keep you warm during the coldest outings. Here's a short list of things to keep in mind when you're shopping for a bag:
Buy for Cold
It's a safe bet that on at least one of your adventures, the nighttime temperature will drop unexpectedly. That's why it's smart to buy a bag that's rated for the lowest possible temperature you expect to face on your camping and backpacking trips. For summer trips, a bag rated at +35 degrees or higher will likely do the trick. If you like to camp in higher elevations in the summer, or if spring and fall outings are in your future, consider bags rated from +10 to +35. Winter adventurers should look for bags in the -10 to +10 range, while those on serious winter alpine climbs and expeditions will want a bag rated lower than -10.
Keep in mind that sleeping bag manufacturers' temperature ratings only estimate the minimum temperature at which the bag will provide warmth. Take these numbers with a grain of salt, as different folks generate different amounts of heat when they sleep. If you're the type who likes to pile on the covers even on warmer nights, go for a bag that's rated ten degrees colder. The opposite is true for "warm" sleepers--a 35-degree bag will probably work for you on a 25-degree night.
Goose or No Goose?
The most important component of any sleeping bag is its insulating material. Modern sleeping bags offer two choices: goose down or synthetic. While both materials have advantages and disadvantages, down bags are considered superior because of their phenomenal warmth-to-weight and warmth-to-bulk ratios. While providing great insulation, down is extremely compressible and light. There's a reason why geese can fly and stay warm through the winter! Down also boasts great long-term durability and will typically retain its insulating properties after years of use.
All of that said, there are many high-quality synthetic bags on the market and synthetic materials are getting better all the time. While a synthetic bag will weigh somewhat more than a down bag at an equivalent temperature rating, synthetic bags perform better when wet. (Yes, the Achilles heel of down is that it loses all insulating properties when wet.) If your trips take you to wet climates, you may want to consider a synthetic bag for this reason alone. Keep in mind, too, that many people are allergic to down--synthetic bags are non-allergenic. Finally, down is considerably more expensive than synthetic, which might tip the balance for adventurers on a budget.
Bags for All Shapes
Sleeping bags come in two basic shapes that reflect their intended use. Mummy-shaped bags offer the best warmth because they conform to the body's contours. This minimizes the amount of body heat the body must put out to maintain a constant temperature. Many mummy bags are offered in women-specific shapes and sizes, as well. Rectangular bags, while they do offer more room to toss and turn, are less thermally efficient because they contain more open air space. Also, they are typically heavier than mummy bags, and are generally not offered with down insulation, making them best suited for car camping or short backpacking trips.
Pad Yourself
No matter what kind of bag you choose, a sleeping pad is a required accessory. Not only do they provide much-needed comfort when sleeping on the ground, pads also offer crucial warmth for your backside, as the weight of your body compresses--and renders virtually useless--the sleeping bag insulation that lies beneath you.
Average Rating of 5.00 out of 1 reviews
Rating : 
Amazing - Nathaniel Peterson, Mar 14, 2007
After literally months of searching for a warm, high-quality, comfortable sleeping bag, I finally found the Coleman Exponent Ridgeline 20-degree sleeping bag. In fact, I found no sleeping bags that matched the entire Coleman Exponent line's superior feature set. Coleman's Exponent line of sleeping bags boasted a great size/wieght/warmth ratio.
When I received my sleeping bag, I immediately noticed that the package was ridiculously light. The Ridgeline is extremely light-weight and packs down very well. Those who gasp at the thought of a mummy sleeping bag should put their fears to rest; the Ridgeline is comfortable and quite roomy. I should also note that I am 6'2" and the bag still fits great.
The Exponent line has smart new features that improve comfort and functionality. The foot section is angled and triangular-shaped to allow your feet to relax in their natural position (not that there is any lack of room anyway). The zipper features a draft-tube and the head section, while roomy, can be cinched down using two differently shaped drawstrings which allow you to choose to either cinch the bottom or the top (a very useful feature for the dark).
The Ridgeline is surprisingly comfortable. One might think that the inner-fiber is down because of the weight and its amazingly plush feeling. Its intelligent shape makes one forget that they are using a mummy bag yet still carrying all of the positive attributes of one. Just for the sake of information, the back side of the Ridgeline is black. Why did they choose the blue color that they did? I have no idea, but I can tell you I don't even care at this point.
What more good things can be said about this bag? It's comfortable, light, small, intelligently-designed, warm and high-quality. This sleeping bag is in a league of its own. I can't wait to take it on some hardcore camping trips.
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