More than just a bed, the sleeping bag will protect you during a night in nature. Feel cold in the middle of the night or even die of heat to the point of not letting him sleep doesn’t mean you didn’t buy a good sleeping bag but, Yes, you bought the wrong bag. For being a key item, the care in choice is essential. And, for that, you need to take into consideration a number of details and tips, which we list below.
But, before that, it is important that you consider how you intend to use your equipment, on which occasion and situation, etc. Go camping near the car? Will use it in wild camps and, therefore, need to load it in the backpack? You just camping on beaches and in warm places? Need a hardware ‘ multi-function ‘, which turn a duvet at the Beach House or want a sleeping bag that supports negative temperatures?
Before you buy a sleeping bag, a good rule of thumb is to think on the coldest night that you will face, and then go down a 5 degrees centigrade. Remember that it is more difficult to keep warm in a sleeping bag designed for warmer temperatures than cooling off in a sleeping bag for cooler temperatures – a zipper fully open wont solve this problem in a matter of seconds.
Some instances of use of the sleeping bag:
Camping -for being too close to the car, the weight and volume are not significant and may choose models that offer more comfort, as the rectangular, open, saw a large duvet.
Trails – will be loaded into the backpack for tracks that can require from one to several nights. Volume x weight ratio should be much smaller than the equipment used in the camping.
Expedition -in addition to being loaded into backpack, require a high-performance and will be chosen according to the zone to be visited, and may vary between-15oC to-50oC (top of the line in the world, with very few users. These equipments are used only in the regions of the poles, according to eningbo. Even Everest requires bag as powerful).
Details to consider before buying a sleeping bag:
1-Format – there are two main formats of sleeping bags: a – Camping – are rectangular. Usually open entirely, becoming a duvet. Some come with a hood, which facilitates in colder places but, in General, are bags to warm places, because the larger aperture lets the heat escape more easily. For anyone who is a little claustrophobic or move much at night, these models are the most suitable. b-Mummy -follows the shape of the body and warms better, besides being more lightweight and compact. All bags of this type, the Trails & Directions, have zippers and allow you to turn it into a double bag (make sure you have purchased bags with zippers placed on opposite sides, so that they can join). Some come with ribbons compressor to reduce the size when stored.
2 – Temperature – in addition to the name, which differs from the models is the minimum temperature at which it allows you to sleep comfortably in it-this is not an exact science and you will only see the difference between bags of same manufacturer. Some factors should be taken into consideration, such as tiredness, the presence of wind, hunger, humidity and personal factors, since there are people calorentas and friorentas (in general people with lower blood pressure and body fat tend to feel colder). The temperatures indicated on the packaging of the sleeping bag give a measure of comfort, but we must always consider some leeway, being able to say that our indications serve for about 80% of people, always remembering that the use of an insulating mat together is indispensable, because the weight of the body reduces the insulating efficiency of the fibers under the weight of the body. On the packaging the temperature is set to comfort, tolerance and extreme. “Comfort” is the temperature at which you feel well in the sleeping bag without the use of very heavy clothes. “Tolerance” indicates that it would need to be dressed in the same kind of sweater that would use outdoors, at that temperature (when we sleep or inactive we need more protection to the cold). And “extreme” indicates that it is necessary to use extra jackets to feel comfortable at the temperature indicated inside the sleeping bag. Browse bed powered by a hot meal and you will have a better night. And, most importantly, seek to have a sleeping bag a little further than the minimum temperature that you intend to confront. If you use your sleeping bag wrapped in a blanket or an aluminium bag (REF. 8235, Coghlan’s), its thermal insulation improves by up to 50 C, protecting also the humidity. The emergency blanket is a useful, low-cost accessory that won’t be within the bags.
3-thermal Collar and hood -we lost at least 25% of the heat through your head and, to keep him warm, our sleeping bags have hoods that close enough to allow it to breathe but do not leave the heat generated by your body out. The thermal collar prevents body heat out the opening at the neck area, keeping your body warm. It is worth remembering here that all the equipment for cold not “manufacture” heat, but have the function of not allowing the heat produced by the body to dissipate, thus keeping your thermal comfort. These items usually does not exist in sleeping bags rectangular, but are fundamental in bags withstand low temperatures.
4-hot Seams -seams can be an important way to lose heat, by micro holes made by the needle. So the sleeping bags for colder temperatures have seams “different” between the inner and outer layer, not allowing the escape of hot air.
5-Zipper -the zippers should be easy to handle and open to both sides. Remember that you can have of handling them with gloves, on cooler evenings. The sleeping bags designed for lower temperatures will have a ‘ flap ‘ between your body and the zipper, to not allow their heat out there. Some of the sleeping bags & Trails line Directions saw a double bag, simply join the zippers, which must be on opposite sides. You should check it out before you buy them.
6 – external and internal Tissue – are usually made of nylon/polyester (external) and tactel microfibre or (internal). The nylon exterior is not treated with waterproofing products, because your body sweats a lot at night and this steam needs to come out somehow, not to condense inside the bag and over watering it.
7 – Filling – this is where the difference of most sleeping bags … This is where you define how a sleeping bag temperature supports. The air is the largest we have and insulating fibre filling capacity store air is what will make it more or less hot. The fibers can be natural (plume of goose chat-duvet or down – and wool) or synthetic. Synthetic fibers exist in various forms and names, according to its manufacturer, and look for ‘ mimic ‘ the isolation and the ability of compression that the goose feather offers. However, the goose feather does not work when wet, takes to dry (and drying is the most delicate part of the use of goose feather) and the maintenance of a sleeping bag made with this material is quite delicate. In addition, usually have a shorter life than synthetic fiber. This, in turn, is heavier than the feather, but continues to maintain the hot wet, dry faster and maintenance is a little easier, but still requires some care (see next usage tips). The technology behind synthetic fibres just gets better and better, making them increasingly close to the goose feather weight, heating capacity and compression. One of the ways to measure the thickness of the synthetic fibers is through the denier. A hair has 20 denier, for example. The higher the number, the thicker wire. The basis for this research was Lamb’s wool and synthetic fibers today seek to imitate it. Fibers thinner than a strand of hair and with a four or seven holes in each one of these filaments. Finer fibres, infinitely thinner than a hair, creating a tangle of wires can be compressed and back to normal, as well as create air pockets that make them very effective. Long or short fibers, fiber format, format and size of the holes inside the fibers. Density, weight and thickness. Manufacturers can create and vary greatly in these items and who wins!
The news that the Trails & Directions, always attentive, brings to you! -the Trails & Directions is bringing to Brazil a revolutionary fiber called Micro-Tec Micro-Tec is a recent trend of insulating fibers, made of micro only 0.7 denier filaments, which can hold more air, similar to that achieved with goose feathers. Some properties of this fiber: warm up even wet, doesn’t hold as much water, leaving dry faster than the other, and have a good thermal insulation with less volume, resulting in a much more compact sleeping bag for transport.
Other big news that the Trails & Directions brings you is the ‘ loose-shell ‘, name in English that means that this sleeping bag will not have seams in front and behind, to prevent heat loss by micro-holes made by sewing needles. The filling of the bag is placed a thin layer coated fabric insulation and arrested just on the sides.