I recently purchased an Integral Designs Endurance Bivy made of Pertex Endurance fabric, as I wanted a lightweight bivy sack to protect my down sleeping bag from drips and condensation in tents, tarps, and snow cave situations. So I've used my bivy sack in humid Pacific Northwest conditions inside a tent with temperatures in the 30s and 40s, and each time have been disappointed to find my sleeping bag glistening from head to toe with condensation. My question, then: Does Pertex Endurance live up to its hype as a highly breathable waterproof fabric? My experience suggests that it doesn't, but I'm curious to know what others think about this fabric. John Seattle, Washington

Dear Gear Guru, I'm thinking about bringing my Labrador camping with me, but don't know if he needs special gear. I have a two-person tent, and there's no way my wife and I could fit him in there with us. I don't think he'll be satisfied sleeping in the tent's vestibule either. What should we do to make sure he's happy and safe? John Bloomington, Indiana

My husband and I are having an argument about our 20-year-old down sleeping bags. The bags in question are Blacks Icecap XL mummy bags. I've recently being doing some fall camping and find that I get quite cold some nights, leading me to surmise that these sleeping bags have reached the end of their days. My husband says it's just my age, as he doesn't find them cold. Now I know I shouldn't bother arguing with him and just go out and buy myself a new sleeping bag, but I want you to tell him that down sleeping bags do "die" eventually. Can you back me up? Carol Port Moody, British Columbia

Dear Gear Guy, I longtime winter outdoorsman, but a winter and alpine camping beginner. I bought a -5-degree Polarguard 3D bag that I've slept in at temperatures ranging from 15 to 30 degrees in high-quality tents and on a (cushy) RidgeRest/Therma-Rest combo, albeit on snow—and I always freeze, if not right away, then definitely by 3 A.M. I wear at least two layers, often my third, hat, etc. Short of wearing my outer layer (!!) or my belay jacket/pillow to bed, what gives? I just in kick-ass shape (no insulation layer) or just a total wimp who needs to buy a warmer, heavier bag? Or is there something about temperature ratings that I'm missing? Bill New York, New York

I looking for a parka for winter camping in New Hampshire. I have narrowed it down to the Feathered Friends Frontpoint and the Wild Things Belay Jacket. How does the warmth of the Belay compare to a high-quality down piece such as the Frontpoint? Which would you recommend for New Hampshire winters? S Portsmouth, New Hampshire

I'm planning a trip to Tibet, and I'm looking for a bag in the zero to ten degrees Fahrenheit range. In addition to struggling with the age-old down versus synthetic issue, I'm also confused by the suitability of those Sierra Designs' down bags that include add-on top layers, such as their Buddy Rad. (They even suggest stuffing clothing in between the layers if it's cold.) Will this setup keep your whole body warm if the add-on layer only goes on top? Overall, I place great value on lightness and even more on compressibility, but I'm always wigged out about getting down wet. Matthew Boston, Massachusetts

I am looking for a tent that will repel dew, especially as I hate the damp feeling that comes from wet grass. Which tent do you recommend? I don't do much camping, but I do like to be comfortable when I do. Tara Bowler, Wisconsin

My wife and I are going bike camping this summer. Are there any light two-person sleeping bags, or single bags that zip together? We need the bag(s)—preferably down-filled—to also fold down as small as possible. The cheapest we've found is about $500 for two. Do you have any better suggestions? Harvey Davis, California

I planning a weeklong sea kayaking trip in northern Quebec. I (and my backside) would appreciate any of your thoughts on a decent portable sleeping pad. Is inflatable the way to go? And what about length? We anxiously await your deliberation. Nicholas B. Westmount, Quebec

What is the absolute cheapest sleeping bag that the Gear Guy would recommend for summer backpacking? Some of us have several thousand dollars to spend on our gear—the rest of us are in college. Doug Chicago, Illinois

What clothes should you sleep in when backpacking? I mostly go in southern California during spring or fall, so temps can dip to 30 degrees at night, but not much lower. Generally, I wear whatever I change into once we make cp, but I've begun to wonder if I should dress more warmly to bed and rely less on a heavy sleeping bag. Christopher Simi Valley, California

Can you help me pick out the best-value sleeping pad? I'm new to backpacking and need my comfort while sleeping. Heck, I'd take my electric blanket along if I could. I want to find a pad that will be worth the money, but will last a long time too. I can't decide between a less expensive closed-cell pad and one of the inflatable ones. Are the inflatable kind that much better to justify the extra cost? Please help this confused backpacking novice! Kendra North Ogden, Utah

I've been looking for a zero- or minus five-degree sleeping bag for use in early spring, but found that nobody makes any quality down bags for women. What's up with that? All Western Mountaineering bags are huge, while Feathered Friends makes only two women-specific bags, but they're rated only for 10 and 20 degrees. I just wonder, does the outdoor industry think that every outdoorsperson is some huge guy with wide shoulders and skinny hips? That has got to change! Anyways, for the problem at hand: I'm five-foot-six and on the lean side. What's a quality down bag that won't require me to expend extra energy in order to heat up excess room inside the bag? Jennifer San Diego, California

My wife and I are going bike camping this summer. Are there any light two-person sleeping bags, or single bags that zip together? We need the bag(s)—preferably down filled—to also fold down as small as possible. The cheapest we've found is about $500 for two. Do you have any better suggestions? Harvey Davis, California

Is DryLoft on a down sleeping bag worth it? I've noticed that it's not appearing as often as it used to on down winter sleeping bags. David Morlock St. Paul, Minnesota

I need a big family tent that's not too expensive but rugged enough to last many camping trips. I've compared Cabela's, Eureka, Coleman, and Wenzel. What is the best tent for the money and durability? Curt Woodward, Oklahoma

I looking for information on free-standing tents before heading into the Everglades, where I'll be sleeping in the chickee huts along the waterway. Can you point me to some particular manufacturers or Web sites? Jeff Naples, Florida

To revisit the sleeping naked debate [June 12, 2003: "Is it true that it's warmer to sleep naked?"], I'd like to point out that while sleeping with a lot of clothes on should generally be warmer than sleeping naked, too much clothing might compress the sleeping bag's insulation and somewhat impede blood flow, resulting in a colder sleep. Wouldn't you agree? Stephen Calgary, Alberta

I accidentally burnt a hole, about one and a half inches in dieter, in my Western Mountaineering Dakota sleeping bag. I'm having trouble finding a place to repair it, and I don't want to do it myself because a brand new bag with a 30-year life span should not have some junky patch on it for the remainder of its working days. Ross Reading, California

Years ago you recommended The North Face Snowshoe sleeping bag to me, just the ticket for a dp 58 hours in Lapland's freezing rain! Since your record is one for one, I seek your advice again for a compact, light sleeping bag (down is out due to allergies) to use when backpacking in Croatia in August. We'll be sleeping hut-to-hut while walking in the countryside, while also spending some time in cities. Do you think Design Salt's silk liner is good enough for such a trip, or do we need an ultralight sleeping bag? Jan Helsinki, Finland

What's the scoop on Eureka's Zeus EXO line of single-wall backpacking tents? They're inexpensive, light for the square footage, and look to have the se super-quick setup as the larger Eurekas. Do you have any info on how well these tents vent? Bill Charlottesville, Virginia

I'm going on a climbing expedition where we'll be ascending into increasingly colder temps. I'm planning to take two sleeping bags, transitioning to the warmer one as we ascend, then using both at high altitude. Are there any drawbacks or cautions to doing this? How can I estimate the temperature rating of the two bags combined? Vincent Salem, Oregon

Dear Knowledgable one, I have a Twister 270 HPX backpacking stove that uses a butane canister for fuel. I've used it several times and quite pleased with its cooking ability. However, when I place it on uneven ground, I have to go through a balancing act to keep from dumping out my dinner. Is there is a tripod attachment or some other system that would help keep my canister level during cooking? Richard Kipphut Cheshire, Connecticut

There is a UK firm called Snugpak that makes equipment for both civilian and military use. Some of their sleeping bags are made with a Pertex shell and a special type of fill that is supposed to be both a good insulator and compress very well. They claim some of their sleeping bags (rated to minus 58 degrees Fahrenheit) will compress into a very small package and weigh only a few pounds. Is Pertex a good product and does Snugpak's down-fill live up to its promise? Are their products worth the money? Mark Tucson, Arizona

Is there a liquid-fuel stove that gives out good heat, but that is also quiet and compact? The MSR Dragonfly is fine heat wise, but it's incredibly loud. The Optimus 111C is hot and quiet, but it's too bulky. Bruce Oakville, Ontario

Why don't sleeping bag manufacturers make the outer shells on their bags from the se materials used in waterproof-breathable jackets? Thanks for your time and answer. Steve Youngsville, Louisiana

Great Gear Guru: My hips hurt when sleeping on the ground, whether I've just humped a 60-pound pack or walked into my backyard. I currently use a Therm-a-Rest GuideLite sleeping pad. Do I need a new state-of-the-art pad, or should I just chalk it up to old age? Brad Sioux Falls, South Dakota

I own a Feathered Friends Swallow down sleeping bag with the regular nylon shell. I was wandering through the gear store the other day when I saw a product by Nikwax that was used to waterproof down garments, including sleeping bags. I would love to give my bag a waterproof treatment to keep the down perfectly dry, but I'm reluctant to do anything to my beloved bag in fear of daging it. What's your opinion of these products? Thanks Mike McLaughlin Pittsburgh, Pennsylvania

All-Knowing Gear Guy, I'm looking at buying a Marmot Pinnacle down sleeping bag and can't decide whether I should get it with the regular shell or with Dryloft. I enjoy sleeping outside (on a pad) when I can, and concerned about dpness if I were to do this over many days. Yet if I were to use it (unzipped!) in humid environments, I'm afraid a Dryloft shell might not provide enough breathability for the bag to stay dry and mildew-free over time. Any suggestions? Zach Isaacs Glendale, California

I bought a Marmot Massif XL sleeping bag because I'm somewhat claustrophobic and wanted a high-quality down bag with ple room. While it indeed has plenty of room, the extra space makes it far less heat efficient—it's rated at ten degrees and I'm barely warm enough at 25 degrees. What kind of liner would you recommend to add warmth for colder nights but not defeat the purpose of getting a larger bag? Neal Pratt Portland, Maine

My summer bag is an Integral Designs Andromeda Strain (40-degree, Primaloft); my three-season sack is the North Face Cat's Meow (20-degree, Polarguard Delta). Both are sweet bags. My question: can these bags be combined (summer bag inside three-season bag) to make a winter bag? Will I gain much, or will the inside bag be unable to loft up and therefore not provide much additional benefit? Thanks! Bill Stell Charlottesville, Virginia

I looking to buy a new tent for canoe tripping in the barrens of Canada's Northwest Territories. I expect lots of wind and rain so an expedition tent would be best. But what is an "expedition tent" anyway? Robert Guelph, Ontario

I camp in the desert in the winter when temperatures can range from zero to 90. My main concern is the wind, which can be downright chilling but also kick up sand. I'm looking for a tent that will shed wind and also not flap like the sail of a 12-meter yacht when it tacks. I'd really like to sleep without the noise. Can you suggest a suitable three- or two-person tent, preferably something on the roomier side? Chip Cairo, Egypt

I'm looking for a sleeping bag to use mainly for summer backpacking in the Northeast, something that's less than two pounds with a temperature rating down to about 30 degrees; I'd also really like a full-length zipper, so I can unzip the bag on those warmer nights. I've always enjoyed your gear wisdom, so I'm looking forward to any suggestions you might have. Kevin Boston, Massachusetts

I know you're not supposed to store your sleeping bag stuffed, but I need something to contain it in while I not using it. Will a garbage bag work, or should I buy some kind of mesh bag for it? Sarah New Canaan, Connecticut

I'm planning on hiking Vermont's LT, and because of past knee problems I'm trying to pack as light as possible. I've been considering buying the Mountain Hardwear Phantom sleeping bag, but I'm concerned about its down fill. Any thoughts? How effective is the water-resistant coating used on the superlight bags? Neil Westport, Connecticut

This July I climbing Mount Rainer. My climbing partners have told me that a synthetic bag is necessary because of the rain. They recommended a 25- to 40-degree bag. We are going light and fast, and plan on using open-air bivys, so I think a bag with a microfiber shell would be a good thing. Unfortunately, I not having any luck in my search for the perfect bag. I have stumbled on only a few bags that are synthetic and have microfiber shells. Integral designs makes one, but it uses Primaloft2 as its insulation material. I have been warned to stay away from short-staple fibers because the bags don't last very long. Do you have any suggestions? Mike Ads Newark, Ohio

What type of bag would you recommend for climbing Denali? Down or Polarguard insulation? What specific bag would you recommend? What about as far as clothing—layers, brands, models etc.? Would you recommend a full down suit? Or a down jacket and either down pants or a shell with layers? Bob Grish Boise, Idaho

What's the best and most reliable lighter to take on a camping trip? The top candidates seem to be Colibri and Windmill lighters. Is there much of a difference? John New York City

I'm fairly well equipped for three-season travel with a Lowe pack, Merrell boots, a Sierra Designs down bag rated to -5, a 3/4-length Therm-a-Rest, and two tents: Mountain Hardware's Glacier and the Slickrock from The North Face. But on a recent June trip in the B.C. backcountry, I pitched the Slickrock on a snowfield and the down bag got wet. What do I do to remedy the situation? Buy a synthetic bag, or a down bag with at least a partial waterproof shell? Buy a full length Therm-a-Rest, which keeps the whole bag off the ground? Get a person four-season tent? Where do I throw my hard earned (and continually depleting) gear dollars? Scott Nelson Vancouver, British Columbia

I'm in the market for a new sleeping bag and would like to give a down bag a try, mostly because of space and weight issues. I'd be using it primarily as my summer bag, so a 30-degree rating should be enough. Do you have any advice for a good down bag? Andy La Crosse, Wisconsin

What's your take on Backpacker's Pantry Outback Oven? Does the Outback Oven really bake well and also conserves fuel for cooking traditional grub? After a zillion meals of mac and cheese, ren, gorp, and dried fruits, the Ziplocs carrying the food start looking more appetizing then the food within. The idea of dining on hot cinnon rolls, fresh pita bread, pot pies, or (gasp!) brownies does make me wonder if the Outback Oven really works or if it's just another ravenous hikers delusions? Ed Beaudry Laurel, Maryland

My family and I enjoy car camping in Alaska's interior. However, as I get older, I'm finding that my back gets stiffer using my old sleeping pad and that my air mattress doesn't give enough insulation. What type of pad or combination of pad and air mattress do you recommend to minimize back pains, provide insulation, and allow for a comfortable night's sleep? Shane Juneau, Alaska

Greetings, greetings, greetings. I have a five-year-old down-filled North Face sleeping bag. I think it's called the blue moon. I've used it over 100 nights so far and I haven't washed it yet (I know). Anyway, I wanted to know two things. First, what is the best way to wash it? The inside is starting to get, um, for lack of a better word, crusty. I want to wash it myself as I don't trust dry-cleaners. My second question involves the fill. This bag is rated to 20 degrees, so there isn't too much fill to begin with, but now there are some "empty spots" on the bottom. Is there a way to move the fill around? Jeff Dobozy Lake Tahoe, California

I've been reading your archived responses regarding water-resistant sleeping bag shells with great interest as I'm trying to decide between down bags from several of the companies. After your initial (and maybe continued) ambivalence about Dryloft, I was surprised by your negative view of Epic. Especially since many manufacturers seem to have jumped on the Epic bandwagon as having better breathability. On what basis do you believe that Epic is "a condensation trap" in sleeping bags, and why do you think so many are suddenly using it if indeed it doesn't breathe well? Is it just a fad, too early to tell, or should I stick with Dryloft? I look forward to your reply, if you care to go another round on this topic. No Name Given

My wife and I will travel overland from Vietn to Turkey in 2003. We cannot decide what sleeping bags to take, as it will be very hot and wet in Vietn during the monsoon season, but cooler and dry when we are in Central Asia. Space, weight, and price are all issues. What do you think? Is there a light, extremely compact bag that will work when hiking in the jungle and also keep us warm in colder, alpine conditions? For the record, the tent we plan to use is a 1.3-pound mosquito net, with a fly and pegs if things get a bit windier. Andrew Darwin, Australia

I'm really getting into ultralight backpacking, and I hope to do a through-hike of the AT or PCT in the next few years. I do all of my backpacking in the summer, but my Marmot sleeping bag is too heavy (and warm). What choices are there for a light, compressible bag costing less than $100? If there are no bags in this range, would you recommend removing some of the down from my Marmot bag to make it lighter? Tom Bellevue, Washington

I would like to know what the difference is between Marmot's 800-fill Couloir and 600-fill Never Summer sleeping bags if they both have a rating of zero-degrees. I'm going to Patagonia in January and would like to know which bag you would use, although I'm not yet sure what elevation I'll be at. Hans Norton, Massachusetts

What's the best car-camping tent for me, my wife, our daughter, and, if he's good, a dog? We prefer two doors and an aluminum frame, but we're flexible. Henry Davis Willisville, New York

What type of sleeping bag gives better value-for-money, down or synthetic? Norm Cpbell River, British Columbia

Most high-end down sleeping bag manufacturers state that THEIR shell material is the best for both breathability and water and wind resistance. After reading the specs on all the different shell-fabric brands, I'm left feeling dizzy. A friend says that Gore DryLoft is best, but then other reputable companies say Conduit, Hyvent, G3, Pertex, or Epic is better. Help! Which one would you choose? David Sparta, Michigan

I in urgent need of a warm sleeping bag for use on an upcoming desert running race I entered in, the Marathon des Sables in Morocco. Although this conjures up visions of heat and sleeping under wispy silk fabric whilst warm winds blow, the reality is that at night, temperatures can plummet to freezing. I'm not too concerned about cost and need a bag which is at least good for about 32 degrees, and most importantly, LIGHT!! It has to be carried and raced with for over seven days. Please recommend waterproof varieties or appropriate techniques as it can pour. Dio Wong Hong Kong, China

My wife and I like to share a cozy sleeping bag while kayak camping, but we both own "pre-marriage" bags that don't zip together. What we want is one bag wide enough for two, made from synthetic material (since it might get wet), and with a temperature rating of about 20 degrees. Also, as we're both about five-foot-five, it would need to be on the short side. Is our only choice to have a bag custom-made? Andy Kirkland, Washington

I'm going to be spending a year working in Kenya and need to find a sleeping bag. I need to get a synthetic bag, but I want one with mobility since I move around a lot when I sleep. I don't like the constriction of most bags. It also needs to be fairly compact. What do you suggest? Paul St. Louis, Missouri

I'm looking for a lightweight, compact "kitchen" for holding dishes and utensils while car camping. Can you recommend some sort of canvas or nylon box thingy? Vickey Freedonia, New York

I'm looking for a decent sleeping pad to use when backpacking. Cascade Designs' Therm-a-Rest seems a good buy, but I'm not sure. Does the three-quarter pad mean my legs will be hanging off the end? Does that even matter? What are the benefits of the larger, wider pads versus the ones that fold in half length-wise? Matt Albuquerque, New Mexico

Any recommendations for a two-person backpacking tent big enough for a six-foot, five-inch, 250-pound camper? I already have a Sierra Designs Clip Flashlight two and it seems a bit small for just one person (me), especially after more than two nights of foul weather. Jim McGowan Charlotte, North Carolina

I was thinking about combining my expandable Mountain Hardwear Galaxy SL sleeping bag with the maker's 40-degree Down Upgrade bag. What do you think about combining these two sleeping bags for a Denali summit attempt? Rob Boston, Massachusetts

In answering the question, "What's the lightest three-person tent available?" a few weeks ago, you missed by far the lightest candidate: the Stephenson WarmLite! It can weigh as little as 3.25 pounds and has 52 square feet of space! Dave SteinerNew York

I just read your reply in reference to a question about sleeping bags for a big guy, and I have similar question. I only five feet, ten inches tall, but I have broad shoulders. I trying to find a mummy bag that is roomy enough through the shoulder area to move in. Do you have any recommendations for good but not too expensive down bags like this? Tad C. Helms Tallahassee, Florida

Drift off under the stars in a featherweight sleeper designed for balmy summertime escapes

Thanks to smart design and engineering, today's tents deliver high-altitude performance at a low-elevation price

Camp overnight or camp all week. We've got the gear to let you go fast and light under blue skies or gray.

Innovations in synthetic insulation and a glut of high-quality down are making bags lighter and warmer than ever. We burrow into six of the best.