Sierra Designs Cloud 800F 20° Sleeping Bag

Product Information

Because of the zipper-less design, the entry is a little tight. But once you've got your legs in the bag it works just fine. The fit is excellent with lots of room to move about. I would classify it as a wider than normal mummy bag. I'm 6' tall and the fit is perfect. The added foot vents are a nice touch when you need to cool off a bit but don't want to fully get outside the bag. The hood is fitting ok, but not great, meaning it’s too wide and sometimes hard to find the right position to have your head covered. She’s right, Bobby Boucher! Sierra Design’s idea is to reduce weight in their sleeping bags by removing the zipper completely. And truly, does anyone really like sleeping bag zippers? They ALWAYS snag and catch the lining until the day when they fail altogether and basically turn your bag into a quilt or a prison. Sierra Designs just ditched the zipper and replaced it with a flap you can wrap around yourself. The Sierra Designs Cloud 800 35 features a zipperless footbox vent, and zipperless comforter design making it very easy to lounge around camp while wearing the bag itself as an insulation layer.

In colder conditions, when overnight temperatures started to approach freezing, we did start to get cold – but here, the mat was the culprit, not the bag. Upgrading to a warmer mat (in our case, a NEMO Tensor Insulated pad, with an R-value of 4.2) hugely extended the viable temperature range of the Cloud 800 20F.I finally got to try this bag out this past weekend on the Buffalo River Trail in Arkansas. The temperatures at night ranged from around 45-55° so I wasn't truly able to test the warmth of the bag. I found no drafts in the bag, except if you don't put your feet in the right way, they slide out of the footbox in the slot. In the mountains you need your gear to be as light as possible and still able to do its job. Being light reduces fatigue and lets you move through hazard zones faster thereby reducing your exposure to risk. In short, light is right. I’ve included some pictures of this bag in its storage and stuff bags with comparison items. With a compression bag you could get it even smaller if that’s your preference. I have only used this bag for three nights so far. The conditions were fair (no rain). This is my second Sierra Designs sleeping bag and I am a dedicated customer! Easy to use and regulate temperature. Most comfortable sleeping bag experience yet. Temp rating seems accurate and materials are top quality.

Another headache in sleeping bags in that your warm, cozy feather cocoon becomes stuffy and unbearable on those nights that AREN’T really cold, making you either unzip in the middle of the night (that zipper again) or have to own a quiver of bags for each temp range. Sierra Designs seeks to partially alleviate this with a flap closure and foot vent that allows you to easily bleed-off heat at night without dealing with a zipper. The construction is well made although the fabric is lightweight so you'll have to be a bit carefully with handling. Unless you are really rough on your gear there's no reason this bag won't last for years to come. The Sierra Designs Cloud 800 35's zipperless design and oversized comforter can help one find solace after a long day of hiking.Taken as a whole, all the features work well together, and we're pretty certain that if you find yourself comfortable in the bag the first time you try it out in-store, you'll love it while on the trail. If you're first and foremost a strict adherent of "Keep it Simple", then the Cloud 800's list of well thought out details may just be a detraction. Value This womens version has 419g of 800 Fill Power DriDown that has a -3°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. Offering unrivalled comfort in its weight class, the Cloud 800 20° sleeping bag from Sierra Designs gives you a standout sleep system for 3-season, cold-weather camping and trekking.