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A good sleeping pad is imperative for a good night’s rest. Besides the obvious cushioning, a sleeping pad insulates you from conductive heat loss due to your body weight smashing the sleeping bags insulation.

That said, in the spirit of keeping the lightest boat possible while maintaining a degree of comfort, the sleeping pad has been the most challenging piece of self-support gear for me. Having tried various pads as well as making my own, there seemed to be no such beast that was both light and comfortable yet compact, convenient and warm... at least in the truest sense of these terms. The less persnickety individuals in the lightweight world have found a degree of content with a simple closed cell foam or self-inflating pad, or, a combination of those. For me, the latter was the best comprimise...until, like a gift from the self-support heavens, the NeoAir air mattress appeared on the scene. More on this later under "air mattresses".

Below are the available "backpacking light" options beginning with the earliest of the modern sleeping pads. Remember though. While there are some general rules when it comes to a pads potential warmth, overall comfort is quite subjective. What may be comfortable for one may be uncomfortable to another.

Closed cell foam
These pads are just that: closed cell foam. They contain no coverings or any other bells and whistles. They are the lightest, most trouble free, and at around $30 or less, the least expensive. They are on the bulky side though and without modifications, can take up a lot of room in your boat. The lightest of these foams don't have the best of memory retention either. In other words, over time, the pad won't fully rebound and you may notice a small loss of cushion and warmth.

For most people, pads with ridges or an egg crate like pattern offer the most comfort. Cascade Designs Z-Lite as well as the Gossamer Gear NightLight fall in to this catagory. Of these, the NightLight has the best ratio between comfort, weight, price and size.

Self-inflating
These pads consist of open cell foam encased in coated nylon. Once you open the valve, they self-inflate. If you desire more firmness, you blow in more air. Not only are these pads adjustable, they are more compact and comfortable than closed cell. They are, however, more than twice the price of closed cell foam pads and are heavier and require more attention. If tossed around willy-nilly like a closed cell foam pad, it might spring a leak leaving you with little cushion or insulation. A patch kit is advisable.

The most recognizable name in the self-inflating market is the Therm-a-Rest by Cascade Designs.

Pad combos
Prior to the NeoAir, the best compromise I had come up with for myself had been a 3/8" thick x 60” long closed cell foam pad over a short torso length self-inflater. The short self-inflating pad provides cushion and insulation where it is needed most and the closed cell pad adds to that while sufficiently comforting the less vulnerable lower body. When cut in half (see "closed cell foam sleeping pad modifications" below), the bulk of the closed cell foam pad becomes manageable and the little self-inflater takes up no more space than a Nalgene bottle.

Additionally, if the torso pad springs a leak, the closed cell pad will still provide some cushion and insulation. Perhaps best of all is the fact that not only does this system offer more cushion than the popular ¾ length Therm-a-Rest self-inflating pad, it is longer which means more over all comfort and it can be just as light. Combined (see photo above), my old Pacific Outdoor Equipment Über Lite and Coleman Rest Easy Pad (cut to 20"x60") tiped the scales at 16oz.

Despite not being as simple or compact as the popular 3/4 self-inflator, I find this combo to be superior in every other way. Together, these pads are comparable in cost too...if not slightly less.

A few torso sized pads are the 5.6oz Klymit Inertia X Lite, the 6oz Cascade Designs Therm-a-Rest NeoAir Small UberLite, and their 8oz NeoAir Small XLite.

Complementary closed cell foam pads:

  • Gossamer Gear Thinlight. Available in 1/8", 1/4" and 3/8" thicknesses
  • Coleman Rest Easy Pad. 3/8" thickness; readily available; $10; light; optimum cushion and insulation short lived (best performance drops off after first dozen or so uses)

Air mattresses
Due to thier comfort and oft time low cost, it is often thought that air mattresses are the ticket for a good nights rest. However, standard air mats are convective making them suitable only for hot nights. Yes, air insulates, but only when comprised of many small pockets. This is why "insulation" is installed between the studs in a building; to replace a single large air space with many small air pockets. Another trait of air matts that some find issue with is the unstable feeling many have.

There are insulated air mattresses that are both warm and very comfortable but, at twice the weight or more compared to the popular self-inflators, they aren't exactly what one might consider light or compact. There is however the Therm-a-Rest NeoAir that has a good combination of all of the above. Its insulation comes from two sources: a series of internal chambers Therm-a-Rest is calling the "Triangular Core Matrix"; and a reflective thermal barrier. Combined, these two features provide an R value of 3.2 compared to an R 2.2 for Therm-a-Rests most popular self-inflater, the Prolite. This is enough insulation for many to be comfortable down to the low to mid thirties... providing the remainder of their sleep system is good.

The original 20"x72" NeoAir next to a standard 32 oz Nalgene bottle set a new standard in lightweight comfort!

The real beauty of the NeoAir Xlite is its comfort to weight ratio. At 2.5" thick, it offers considerably more cushion than Therm-a-Rests benchmark 1" thick self-inflating Prolite. Considering that and the fact the 72" long NeoAir weighs only 1 ounce more than the 47" long Prolite, the NeoAir Xlite has an unmatched comfort to weight ratio. For those in warmer locales without the need for as much insulation, there's the new 72" NeoAir Uberlite at only 8.8oz, and an R value of 2.

As good as it sounds and is, the NeoAir is not without downsides. The first and most foreboding is its price. The "regular" which, is 20" wide by 72" long, costs a whopping $170! The second issue probably isn't a big problem as it is easy and fast to repair but, if you're not careful and puncture it, you'll have zero padding and almost as little insulation left. It is made from ultra-light weight materials and as such, is some what vulnerable. With care, it has proven to be reasonably durable though, and Therm-a-Rest, known for their excellent customer service, does offer a "limited lifetime warranty". Lastly, there is more than a monetary price to pay for this much cushion. It is difficult for many to stay on any of the standard 20" wide pads. When a part of the body comes off one that is 2.5" high, it's more noticable than it is on a pad 1" tall. This drop off can be disrupting. This height can also cut in to the already small foot box area of many bivy bags....though by now, most bivy makers are aware of this.

Another company to look at is Klymit. Offering what may be the lightest pads available, this relative newcomer also makes some of the most unusual looking. Rather than being solid, they have cutouts which, in theory, allow the sleeping bags loft to fall within and insulate. Otherwise, the insulation gets smashed under your body's weight. Though the reviews seem mixed, if your goal is the lightest and most compact, they need to be considered.

General tips

  • If your closed cell pad won’t fit in the main drybags, place it anywhere in the boat. Doesn’t matter if it gets wet. They dry quick. And if yours doesn't dry fully, just place it under the shelter so your sleeping bag doesn’t get damp. It'll also double as protection for your shelter floor. To make one of these pads fit in your boat better, see Closed cell foam sleeping pad modifications below.
  • Use nature for extra insulation and cushion by placing moss, leaves, grass, tules or rushs' under the shelter. Tules, the material of choice for many prehistoric people, offer the most cushion and insulation but are not often seen in the whitewater environment. Scouring and horsetail rush works well too and is more common than tule. Use what ever is available though. Just remember that the dryer it is, the warmer it'll be. Green = moisture = warmth robber.
  • Do not use open cell foam only. Not only will open cell eat up space in your boat, it’ll suck up water like the sponge material it is.
  • If dry, a neoprene wetsuit or pants can be used in conjunction with your pad for additional cushion/insulation or as a stand alone pad. If damp, you can place it under your shelter and cover with nature.
  • To save weight and bulk, when I was younger, I'd use a 48" long foam pad and use stuff sacks, extra clothes, or natural materials under my legs (nature goes under the shelter; sacks and clothes inside).
Experimental mattress
Imagine an insulating mattress that is more comfortable than two Therm-a-Rests together yet weighs less than one and only costs $15. This is it! The bottom is an air mattress (A) comprised of party balloons inside synthetic silk. This serves as the cushion. The upper (the side you sleep on) is a closed cell foam pad (B) which acts as additional cushion as well as the insulation.

B Coleman Rest Easy Pad cut to 20"x59" then in half
C dollar store balloon pump
D 24 260Q party balloons (2 nights + spares)
E syn silk balloon encasement; 10 sleeves; 20"x48"
F sil-nylon stuff sack

Total weight = 10oz

At camp, the balloons are pumped up and slid in to their encasement (E)(process shown in upper right pic). This completes the air mattress (A). The two mats (B) are then attached (see closed cell sleeping pad modifications below) and slid under the two air mattress elastic retention straps (G).

The air mattress provides the cushion where it's needed most: shoulder to hips. My lower legs hang off the air mattress but are sufficiently cushioned and insulated with the foam pad (B). My head is supported by a nature pillow (see photo at bottom of page ).

Though there is not a sleeping pad in production offering such a favorable comfort/weight ratio, this system has a very high fiddle factor taking about 10 minutes of effort to set up. And while more durable than one would think, there seems to be no quality control with these balloons. Some will pop for no reason. Imagine a balloon popping near your head at 3 am (during testing, I averaged 1/night). That aside, the good balloons (unfortunately, there's no way to tell the good from the bad) will bear my 150 pounds and active sleeping characteristics fine...if the ground is prepared perfectly. In that sense, using this mattress very much reminds me of the following quote by Charles Lindsey: "Bomb-proof is a solution for carelessness while lightweight is a reward for carefulness".

Though this isn't a recommendation on my part, if this mattress sounds like your thing, it's not difficult to make. Just take a 4'x4' piece of synthetic silk, fold it over and sew ten sleeves in it (I was experimenting w/ different silks hence the black & white colors). Then, sew two 3/8" wide elastic straps (G) on and modify a closed cell foam pad as outlined below. The balloons and pumps are easy to find and you can carry it all in a quart sized zip-lock or bread sack...or, you can make your own. Making a stow bag like this is one of the easiest sewing projects there is (though sil-nylon is tricky to work with due to its slipperyness). For tips on sewing, materials, etc, click here.

 
....oh, and the balloons serve as morning entertainment for your buddies.
 
Closed cell foam sleeping pad modifications

Modifiying a closed cell pad so that it's easier to pack is simple: cut it in half. Insert each half in to each dry bag then pack the rest of your gear inside. The pad adds protection to your gear whilst being crammed in the stern. If the pad won't fit inside your drybags, put each half anywhere in the boat...unrolled conforming to the shape of your kayak (I have even used them as extra thigh/knee cushion). The bluish colored pad in the left photo is a Coleman Rest Easy Pad used in my experimental mattress above. The gray pad is a Gossamer Gear Nightlight cut down to 19.5"x46".

There are two ways of reattaching the two halfs at camp: (A) velcro which is attached to the foam with adhesive or (B) tying/stiching with string. The velcro is by far the more convenient and trouble-free method. However, (B) makes for a faster mod and can be reinforced with duct tape for extra longevity. In the photo on the right, (C) is velcro that attaches the pad to the underside of my bivy floor. Sleeping pad & shelter floor protection in one. Double duty!

What about pillows? There are several things you can do here besides taking the special Winnie the Pooh "camp pillow":

Stuffing grass in a sleeping bag stuff sack for a nature pillow.
  • Place your spray skirt or wetsuit inside the sleeping bag stuff sack then under your shelter if they are damp. Your PFD can be used alone or under your shelter as well. Remember though. If these items contain too much moisture, whether under your shelter or in a stuff sack, they'll feel cold and rob heat from your body.
  • Build up a mound of leaves, rush, grass and/or moss under the shelter floor or place it inside your sleeping bag stuff sack. The dried grass is quieter than leaves and warmer than some thing that's green. If you don't like the feeling of nylon against your face, place the sack inside extra clothing if it's available.
  • Place rock/s of desired shape and size under the head of the sleeping mat. Sounds terrible but I'm finding myself doing it more frequently. Try. You may like it too!

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