Sierra Designs Cloud 800 35 Degree Down Sleeping Bag

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UOG TOP PICK – Sierra Designs Cloud 800 35 Sleeping Bag – If you don’t want the restriction imposed by a zipped bag and don’t fancy a quilt because you move around too much at night then the Cloud 800 bags deliver unrestricted rest when you want it and warmth when you need it.

The Cloud 800 Sleeping Bag is a truly innovative design that really stands out from the rest. The zipless opening with oversized comforter really works especially for people who move around during the night, people looking for extra room in their bags and anyone who likes to cool off quickly. 

Sierra Designs says

Welcome to the most comfortable night’s sleep you’ll have in the backcountry. Hailed as Outside magazine’s “Best Sleeping Bag For Backpacking” and an evolution of our award winning Backcountry Bed, the Cloud features a zipperless design with an integrated comforter. Constructed with 15d nylon ripstop fabrics and 800 fill power DriDown™, delivering an ultra comfortable lightweight mummy. To top it off, the Cloud touts our patented self sealing foot vent and a pad sleeve, allowing you to vent heat and move around without worry.

Our Verdict

Sierra Design’s have developed a unique sleeping bag in the Cloud 800. There are a number of practical features that you only truly appreciate once you’re using the bag. The zipless, quilt style opening that wraps around you seems like a gimmick until you get to enjoy how easily you can get in and out of it. The opening has an oversized comforter which acts like a quilt so you can really wrap yourself up in it if the temperatures drop. Alternatively, you can quickly and easily open it up to dump heat if you’re too hot.

Sierra Designs use something called ‘Temperature Mapping’ in this sleeping bag. This is when they use less insulation on the back of the sleeping bag and add sleeves to attach your sleeping mat in place. This may seam strange but by keeping your mat securely in place it will keep you just as comfortable and warm, replacing the unnecessary bottom insulation, thus saving you weight. The best aspect of the bag for me personally is the self sealing foot vent. I get hot feet so restrictive mummy bags are often uncomfortable due to feet that are overheating. On the Cloud you can easily slide your feet out of the vent on the bottom to cool off or just let air in. Due to the placement of the vent and the overlapping materials, as soon as your feet are inside there no chance of cold air getting in or your feet accidentally getting out. An ingenious design feature. 

This version has 268g of 800 Fill Power DriDown that has a 2°C Comfort Limit so its good for two to three season use, particularly if you’re a warm sleeper. The fabrics used are 15D so they are lightweight but also more than many of the lightest bags out there. The dimensions of the bag are generous so it would suit someone after a larger bag, someone who moves around a lot at night and warm sleepers. The overall weight is really impressive given all the features too.

– Reviewed by Ultralight Outdoor Gear

• Trek Scotland Review – Sierra Designs Cloud 800

Features

• Patent pending zipperless design for more comfort
• Oversized integrated comforter resemble all the comforts of your bed at home
• Insulated shoulder pocket keeps comforter wrapped around you sealing out drafts
• Patented self-sealing foot vent allows fast and easy ventilation
• Temperature Mapping System – This sleeping bag features a sleeping pad sleeve that keeps pad under you, for comfort and warmth and replaces unnecessary bottom insulation
• PFC-Free 800FP DriDown® and 15d nylon fabrics

Specifications

Temperature Rating

• EN Limit Temp Rating: 26°F / -3°C
• EN Comfort Temp Rating:  36°F / 2°C

Regular Specs

• Weight: 654g (excludes storage bags)
• Fill Weight: 9.5oz / 268g
• Fits Up To: 6′ 0″ / 183 cm
• Length: 78in / 198 cm
• Shoulder Circumference: 60″ / 152 cm
• Hip Circumference: 58″ / 147 cm
• Footbox Circumference: 40″ / 102 cm
• Sleeping Pad Sleeve Circumference:  45.5″ / 115.6 cm
• Fits Sleeping Pad (WxH): 20″ x 2.5″ / 51 x 6.4 cm
• Mesh Stoarge Bag Size (LxW): 20 x 12″ / 51 x 31 cm
• Stuff Sack Size (L x W): 13 x 7″ / 33 x 18cm

Long Specs

• Weight: 728g (excludes storage bags)
• Fill Weight: 10.4oz / 294g
• Fits Up To: 6′ 6″ / 198 cm
• Length: 84in / 213 cm
• Shoulder Circumference: 62″ / 157 cm
• Hip Circumference: 60″ / 152 cm
• Footbox Circumference: 42″ / 107 cm
• Sleeping Pad Sleeve Circumference:  55.5″ / 141 cm
• Fits Sleeping Pad (WxH): 25″ x 2.5″ / 64 x 6.4 cm
• Mesh Stoarge Bag Size (LxW): 20 x 12″ / 51 x 31 cm
• Stuff Sack Size (L x W): 13 x 7″ / 33 x 18cm

Materials

• Insulation: 800FP PFC-Free DriDown
• Shell Fabric: 15d nylon risptop
• Liner Fabric: 15d nylon risptop

Help and advice:

• The Ultimate Guide to Lightweight Sleeping Bags
• Time-Saver Guide to Choosing a Sleeping Bag
• The EN13537 Standard
• All About Down
• Why is ‘PFC Free’ Important?