Sierra Designs Cloud 20 Review
Cons: Drafty hood, limited lower body ventilation, uninsulated sleeping pad sleeve
Manufacturer: Sierra Designs
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Sierra Designs Cloud 20
|Price||$319.95 at Amazon||$485 List||$429.00 at Feathered Friends||$389.00 at Feathered Friends||$349.95 at Backcountry|
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|Pros||Easy zipperless closure, built-in foot vent, wider than average dimensions, fair price||Spacious dimensions, super comfortable, great loft, lightweight, made in the USA||Super lightweight, incredible loft, snag-proof zipper, cozy hood||Best-in-class zipper, best-in-class hood, awesome loft, great warmth-to-weight ratio||Spacious hourglass shape, innovative venting "gills", waterproof footbox, sturdy compression sack|
|Cons||Drafty hood, limited lower body ventilation, uninsulated sleeping pad sleeve||Expensive, awkward hood, good but not great zipper||Uncomfortably narrow dimensions, bare-bones design, noisy fabric||Narrow leg dimensions, no draft collar, heavier and bulkier than some 3-season options||Below average warmth-to-weight ratio, bulky packed size|
|Bottom Line||Classic mummy bag shape with a sans zipper closure||If we could only have one bag for the rest of our lives, this would be it||The ideal bag when you need the warmth, but ounces matter too||Exceptional warm and loft along with our favorite hood and zipper||An hourglass bag with premium down and spacious lower dimensions|
|Rating Categories||Sierra Designs Cloud 20||MegaLite||Hummingbird UL 30||Swallow 20 YF||NEMO Riff 30|
|Packed Size (15%)|
|Features & Design (10%)|
|Specs||Sierra Designs...||MegaLite||Hummingbird UL 30||Swallow 20 YF||NEMO Riff 30|
|Insulation||800 FP Down||850+ FP Down||950+ FP Down||900+ FP Down||800 FP Down|
|Compressed Volume (L)||8.4 L||7.2 L||7.3 L||8.5 L||7.2 L|
|Measured Bag Weight (Size Long)||2.00 lbs||1.62 lbs||1.45 lbs||1.94 lbs||1.91 lbs|
|Manufacturer claimed weight of size Regular (lbs)||1.81 lbs||1.5 lbs||1.33 lbs||1.79 lbs||1.8 lbs|
|Compression/Stuff Sack Weight (oz)||0.7 oz||1.6 oz||0.8 oz||1.0 oz||2.4 oz|
|Manufacturer Temp Rating (F)||20 F||30 F||30 F||20 F||30 F|
|EN Temp Rating (Lower Limit, F)||17 F||Not rated||Not rated||Not rated||29 F|
|Fill Weight (oz)||14.8 oz||13 oz||12 oz||17.5 oz||10.2 oz|
|Compression or stuff sack included?||Stuff||Stuff||Stuff||Stuff||Compression|
|Shell material||Ripstop nylon (15D)||Extremelite (12D)||Pertex Endurance (10D)||Pertex YFuse (20D)||Ripstop nylon (20D)|
|Liner material||15d nylon ripstop||n/a||n/a||Pertex 20 denier nylon taffeta||30D nylon taffeta w/ DWR|
|Small Organization Pocket||No||No||No||No||Yes|
|Zipper||None||Full-length / Side||Full-length / Side||Full-length / Side||3/4-length / Side|
|Shoulder Girth (in)||62||64||58||60||62|
|Hip Girth (in)||60||Not stated||52||56||54|
|Foot Girth (in)||42||39||38||38||59|
Our Analysis and Test Results
Zippers are so 1990's. Sierra Designs can help you embrace the 21st century with several zipperless sleeping bags. The Cloud has some great innovative features, but we believe their are better zipperless offerings.
Sierra Designs gives the Cloud we tested a 20°F rating, but its performance on the industry-standard EN test is a little better (15° lower limit). Our testers thought both the manufacturer and EN ratings seemed generous. We thought it felt comparable to an average bag with an EN lower limit of 25°.
Potential users should also be aware that to save weight this bag doesn't have any insulation on the bottom side of the torso area. Thus, a good sleeping pad is mandatory for sleeping comfortably with this bag.
Nestling into this bag is a pleasant experience. The closure flaps come close to achieving the familiar feel of the blanket like your are probably use to sleeping with. Its overall comfort, however, did not equal some other zipperless designs because the Cloud's narrow dimensions leave it with the same constrictive feel as many other mummy bags.
Like a lot of bags reviewed, the Cloud comes with a simple drawstring stuff sack that's unable to compress it effectively. With a third-party compression sack, we were able to pack a size long to 8.4 liters in volume. This leaves it with an above average packed sized, comparable to the some similarly warm, but synthetic bags.
There are several different aspects of this bag that harm and hurt its versatility. The foot box, for example, has a slit on the underside for your feet to escape. This lets you keep the bag on while you shuffle around awkwardly or sit and sip your morning coffee. The same slit, however, isn't very effective at venting should your lower body overheat.
The main entry/exit flaps make up for this to some degree with a range of configurations for different outside temperatures. But when the bag really hits the pad, you still have fewer options than a traditional full-length zipper bag if your legs start to sweat.
Features and Design
To cinch the hood tight, the Cloud features a drawstring like that found on most sleeping bags. For this drawstring to be effective, however, the main closure flap must be pinned beneath your left shoulder. When you roll onto your right side, it's difficult to keep this flap pinned down. But without it, the hood will not stay cinched closed.
Sierra Designs also brags about a sleeve on the underside of the bag that ensures you can't slide off your sleeping pad in the middle of the night. That's true, but unlike some other bags, this pad attachment system isn't removable if you prefer to save weight and not to use it.
For its middle of the road performance, the Cloud comes with a middle of the road price. At full MSRP, we don't consider it to be a particularly good value, but bigger fans of the no-zipper design will likely disagree. For a few bucks more there are several bags that offer similar comfort with better performance in other areas.
Although most of our testers weren't fond of the Cloud, it did garner some passionate supporters. These supporters liked its simple flap closure design that provided a similar feel to sleeping with an ordinary blanket. Its critics, however, maintain the same design limits its versatility and adds unnecessary weight. The bottom line: if the no-zipper concept sounds like heaven to you, don't let this review discourage you. The Sierra Designs Cloud 20 is a decent bag whose innovative design is sure to please many.
— Jack Cramer