The Sierra Designs Cloud 800 Dridown 35 Degree Sleeping Bag is the closest thing you’ll get to snoozing on a cloud with its lofty 800-fill DriDown insulation combined with an innovative zipperless design that significantly reduces weight and increases sleeping comfort. It’s a great choice for the minimalist backpacker seeking a cozy sleeping bag for three-season use in most environments, seeing it’s rated to 36 degrees Fahrenheit on the European Norm Comfort scale. Another benefit, the 800-fill DriDown insulation wards off condensation and moisture with its hydrophobic treatment, so you’ll remain toasty-warm even when it’s damp outside. Taking design inspiration from Sierra Design’s Backcountry Bed, the Cloud 800 Sleeping Bag ditches pesky zippers for an integrated comforter that cozily wraps your body like a cocoon. Unlike the Backcountry Bed, the Cloud 800 Sleeping Bag offers a single-sided entrance, instead of a dual-sided design. This single-sided entry saves you approximately eight ounces from a comparable Backcountry Bed, making it even better for the minimalist backpacker. Plus, you’ll find the internal comforter doesn’t come undone while sleeping, as Sierra Designs uses an ingenious shoulder pocket to keep it wrapped around your body, even if you toss and turn throughout the night.

Your favorite thing about camping just might be the fact that when you’re nestled in your Sierra Designs Backcountry Bed 700 Dridown 35 Degree Sleeping Bag, you have trouble distinguishing home from tent. Let’s not be rash here, however. Your favorite things about camping are really the red rock landscape and the scent of desert sage brush, but this bag comes in for a close third place. With a unique design that eliminates the zipper, you get an incorporated comforter that acts just like the one on your bed–curl it under, snuggle with it, or toss it off you when it gets warm. Alternatively, should the desert nights cool, you can hook the blanket to the bag sides, cinch the hood around your face, and pretend you were in your traditional mummy bag all along. Insulated sleeves in the comforter help eliminate drafts, and a sleeve along the bottom lets you slide your sleeping pad in for ultimate roll-around comfort without worrying about that slick rock you set you tent up on. If you’re going sans-tent (because the night sky is also a favorite), worry not about dew or morning showers getting your down soggy–this stuff is Dridown, and it stays lofty and retains warmth even when wet.

The Sierra Designs Frontcountry Bed 35 Degree Synthetic will have you sleeping so well at camp that you won’t even miss your bed at home. Cozy up into the plush bag, complete with a comforter flap, and experience the spaciousness of the rectangular shape. If the night turns chillier than expected, the insulated arm and hand pockets trap in your body heat. For warmer nights, utilize the foot vent to let some of that warm air out so you can stay cool. You won’t end up with zippers poking your body as you toss and turn, thanks to the Frontcountry bed’s zipperless design. And, since the bed features an integrated sleeping pad sleeve, you’ll never wake up on the hard ground with your sleeping pad on the other end of your tent.

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.