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  • Sierra Designs - Cloud 800 Sleeping Bag: 20 Degree Down - One Color
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  • Sierra Designs - Cloud 800 Sleeping Bag: 20 Degree Down - One Color

Sierra Designs Cloud 800 Sleeping Bag: 20 Degree Down

$329.95 - $349.95

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    7 Reviews


    Ultralight comfort revelation.

    With the Sierra Designs Cloud 20 Degree 800 DriDown Sleeping Bag, gone are the days of sacrificing comfort for ultralight efficiency. Now you can enjoy cloud-like comfort after long days of trekking, without being burdened with excess weight and bulk on the trail.

    Its innovative zipperless design features a flap that lets you get in and out easily, but wraps around you when you're lying down in order to seal in precious heat. On warmer nights you can simply push the flap out of the way to vent your core. 800-fill DriDown insulation and 15D fabrics keep weight to a minimum while still packing plenty of warmth, and the down is treated for water-resistance to keep damp nights from leaving you shivering. A half-sleeve on the underside of the bag secures your sleeping pad to create one integrated unit that offers warmth retention and comfort.

    Another ingenious features it the self-sealing foot vent, which lets you simply raise your knees and poke your toes out when you get stuffy, so you can cool off without messing with any pesky zippers. On the flip side, the adjustable hood easily cinches down to keep your head warm on frigid nights. Considering this bag's innovative design, reasonable price, and frankly incredible levels of warmth and comfort considering its weight, it doesn't seem hyperbolic to call the Cloud 20 a revolutionary achievement.

    • Innovative ultralight bag for backpacking or camping
    • Zipperless design shaves weight and ramps up warmth retention
    • Insulated shoulder pocket wraps around you to seal out cold
    • Sleeping pad sleeve prevents pad from slipping
    • Warm and compressible DriDown insulation insulates even when wet
    • Self-sealing foot vent allows hands-free cooling off
    • Hood cinches down to lock in heat around head
    • Item #SDS009N

    Tech Specs

    15D nylon ripstop
    800-fill PFC-free DriDown
    Max User Height
    [regular] 6ft, [long] 6ft 6in
    Shoulder Circumference
    [regular] 60in, [long] 62in
    Hip Circumference
    [regular] 58in, [long] 60in
    Foot Circumference
    [regular] 40in, [long] 42in
    Bag Length
    [regular] 78in, [long] 84in
    Draft Tube
    insulated shoulder pocket
    Pad Retainer
    [circumference x width x height] (regular) 45.5 x 20 x 2.5in, (long) 55.5 x 25 x 2.5in
    self-sealing foot vent
    Fill Weight
    [regular] 14.8oz, [long] 16.4oz
    European Norm Comfort Rating
    European Norm Lower Limit Rating
    Storage Sack
    Stuff Sack
    Stuff Size
    15 x 7.5in
    Claimed Weight
    [regular] 1lb 13oz, [long] 2lb
    Recommended Use
    backpacking, mountaineering, weekend camping, winter camping
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

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    Light and Warm

      - Super lightweight bag, great for any backpacking mission.
      - Packs down to a very small size
      - Lack of zippers creates a less claustrophobic feel than some sleeping bags give me. More akin to the feeling of using a blanket in your bed.
      - The foot vent! such a great feature if you get a little too warm at night, just stick your foot/feet out of the hole near the bottom of the bag and instantly feel comfortable. Again, this is akin to sleeping in your bed with your normal comforter, where you might do the same on a hot summer night.

      - There is no insulation in the area where the sleeping pad sleeve is (You can see this in one of the detail photos on this product page)
      If you do not have a pad that fits the sleeve great, or if you for some reason have no pad at all, you won't have the best time sleeping in this bag on a cool night. I assume this was done to cut weight, and if you have the right pad (pretty much any decent pad will do) you will have no issues at all with this. Just a fair warning to make sure you have a good pad to go with this bag if you're interested in it

      9/10, would def recommend!


      • Familiarity: I've used it several times

      I loved using this bag and slept like a baby. It was incredibly light and packed down really nicely compared to other bags I've used. It was incredibly comfortable and warm without feeling too constricting while I slept.

      Lotta good things in one warm cocoon

      • Familiarity: I've used it several times

      I was given this product from Backcountry, but this review Is my personal opinion. I used the Sierra Designs Cloud 800 Sleeping Bag: sleeping bag both for car camping and a spring mountaineering trip. I was initially surprised at the lack of a zipper, which quickly changed to excitement when I realized this meant no more stuck zippers in the middle of the night! The Cloud 800 Sleeping bag packs down to even smaller than advertised, so no complaints there. I am 5’6”, the regular size fits me well with room to spare.

      I tested this sleeping bag at one of the base camps for Mt. Baker. This sleeping bag is crazy cozy and held up well in the cold. Sierra Designs cut some weight by not insulating the underside of the top half of the sleeping bag, but instead having a place to slip it over the sleeping pad. I usually find my lower body is cooler in sleeping bags, since it is easy to thrown on an extra jacket, so I appreciate that the legs have a little extra warmth. It allows for use with a ¾ length sleeping pad. The foot vents are a nice addition, so it can be used on warmer nights. This feature combined with the ease of opening the upper portion makes overheating a non-issue.

      The Sierra Designs Cloud 800 will definitely be my go to bag for light alpine missions in the future!

      Lotta good things in one warm cocoon

      Love it

      • Familiarity: I've used it several times

      This bag is awesome. Super light, quiet, comfy and warm. What more do you want? The zipperless design is great for dumping heat not to mention, who like zippers?

      So Awesome

      • Familiarity: I've used it several times

      You won't want to get out of this thing. It's that comfortable. Sierra Designs has always been incredibly innovative when it comes to sleeping bags and tents, and the Cloud 800 is no exception. I've had their Backcountry Bed and Zissou models in the past, but the Cloud combines the two into an awesome mummy-style bag with a quilt feel (but without the possibility of drafts getting in like with the Backcountry Bed). I'd highly recommend this bag if you tend to get claustrophobic in traditional mummy bags, but need the warmth and packability that they provide.

      No zippers is a dang good thang

      • Familiarity: I've used it once or twice and have initial impressions

      Can I tell you how nice it is to sleep like a baby, and not cry like one trying to get out of your bag in the middle of the night only to snag your zipper? No zipper, bed like qualities with a blanket style “top lid”. Haven’t tried it in real cold weather yet, but it’s done well so far at mid 30-mid 40 level since you can pull the blanket part off, and or vent your feet! Recommend sea to summit insulated pad for this as there is very little insulation in the bottom part of bag(mainly just back area...bottom part is ok). Meant to be a system so don’t skimp on your pad or you’ll regret it.

      Too Comfortable

      • Familiarity: I've used it several times

      I really love using this bag. I move around a lot in my sleep and the sleeve in the back keeps this bag on my pad. With the cool way it opens, it is also really easy to get in and out of.

      Unanswered Question

      Would the sleeve fit a Big Agnes Q-core SLX pad? (20 inch wide, 4 inch thick)