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A superb 0-degree sleeping bag is a vital piece of package when you plan to do any cold-weather adventuring. In any case, making certain a great night time’s sleep whilst you’re out tenting is simply as essential as prioritizing sleep at residence. Get eight hours of shiver-free Z’s, and also you’ll get up refreshed and able to tackle no matter your subsequent journey holds. Spend all night time shaking in a meager three-season bag, nonetheless, and also you’ll find yourself too groggy to benefit from the journey.

There are a variety of first rate winter sleeping baggage available on the market. However when you’re heading out in really chilly temperatures, it pays to perform a little further analysis to ensure your bag is absolutely as heat and well-built as marketed. That will help you determine—and keep snug in below-freezing tenting circumstances—we examined and ranked a number of the greatest 0-degree sleeping baggage from manufacturers like Kelty, Nemo, and Huge Agnes.

How We Picked the Finest 0-Diploma Sleeping Luggage

Sleeping baggage are available all kinds of cuts and types, and every takes a unique strategy to backcountry heat. Even refined variations in baffle sample, supplies, insulation, and building could make a giant distinction in a bag’s means to retain its loft—and due to this fact warmth—yr after yr.

We in contrast the consolation and supplies of a number of the top-rated 0-degree sleeping baggage. Corey Buhay

To find out the very best 0-degree sleeping baggage you should buy, we thought of 12 baggage from 10 high outside gear corporations. We took the sleeping baggage on varied tenting journeys, fastidiously contemplating heat, weight, packability, reduce, and options. These 9 emerged as our favorites.

Finest 0-Diploma Sleeping Luggage: Evaluations and Suggestions

Finest Total: Sea to Summit Ascent Down 0

Finest Total

Sea to Summit Ascent 0-Degree Down Sleeping Bag on gray and white background


  • Weight: 3 lbs, 3 oz. (common)
  • Packed Quantity: 10.2 liters
  • Lengths: Common, lengthy
  • Fill Energy: 750-fill down


  • Footbox zipper and twin facet zips for simple venting
  • Relaxed match very best for stressed sleepers
  • Internal zip pocket for electronics
  • Absolutely unzips to be used as a quilt
  • Gentle, cozy interior lining


  • Zippers is usually a bit fiddly

Not solely is that this Sea to Summit sleeping bag versatile and packable, it additionally instantly stood out for its best-in-class consolation. The buttery-soft lining felt higher towards my pores and skin than my very own bedsheets, and the relaxed mummy match stored me heat with out feeling constrictive. Even probably the most stressed sleepers amongst our testers had been capable of flop round and alter positions with out feeling certain up within the bag. Separate vertical chest baffles hold the insulation over your core whenever you want it, and a beneficiant neck baffle retains warmth sealed in tight.

However consolation isn’t the entire story. The Ascent Down 0 is a full-featured sleeping bag throughout the board. For starters, it has three zippers: one on the base of the footbox, a full-length facet zipper alongside the left facet, and a blanket fold quarter zipper on the precise facet. The footbox and blanket fold zippers make it simple to stay out a foot or an arm on scorching nights, and the entire bag flays open solely, turning into a backpacking quilt for summer time journeys.

Sea to Summit Ascent Down 0 Sleeping Bag laid out on grass
This Sea to Summit sleeping bag is cozy but roomy—simply what I like in a bag. Corey Buhay

However even with the three zippers, this bag stays proper across the 3-pound mark, because of its light-weight, top quality supplies. The 750-fill down ensures heat with out including an excessive amount of bulk, and a light-weight, 20-denier nylon shell makes for simple packing. Higher but: All this comes at an inexpensive worth.

Finest Down: Kelty Cosmic Down 0

Finest Down

Kelty Cosmic Down 0 Sleeping Bag on gray and white background


  • Weight: 4 lbs, 5 oz. (common)
  • Packed Quantity: 24L
  • Lengths: Common, lengthy
  • Fill Energy: 550-fill


  • Two-way zipper for simple venting
  • Snug interior lining
  • Inside valuables pocket
  • Extra reasonably priced than many related fashions


  • Heavier than related fashions
  • Not very packable

The Kelty Cosmic Down 0 offers an amazing steadiness of consolation and worth. At below $300, it’s one of the vital reasonably priced sleeping baggage on this listing—uncommon for down. A steady draft tube retains the chilly from seeping by way of the zipper, and trapezoid-shaped baffles entice the 550-fill down insulation in place, stopping migration over time.

We additionally appreciated the options—an inside zippered stash pocket, a hood cinch, a neck baffle, and a two-way zipper for venting warmth on scorching nights. Whereas not as smooth towards my pores and skin as a number of the different baggage on this listing, the sturdy supplies promise a lifetime of use.

Kelty Cosmic Down 0 Sleeping Bag laid out on grass
I actually just like the considerate options of this Kelty sleeping bag, just like the air flow system. Corey Buhay

One caveat: this bag has a 17-degree EN consolation ranking. Meaning it’s barely colder than most different fashions on this listing, which have 13- to 15-degree consolation scores. At over 4 kilos, the Cosmic can also be a little bit heavy.

Finest for Backpacking: Nemo Sonic 0

Finest for Backpacking

Nemo Sonic 0 Sleeping Bag on gray and white background


  • Weight: 3 lbs, 4 oz. (common)
  • Packed Quantity: 9.6 liters
  • Lengths: Quick, common, lengthy
  • Fill Energy: 800-fill


  • Mild weight that’s very best for backpacking journeys
  • Chest zippers assist vent some warmth
  • Bolstered footbox to spice up sturdiness
  • Exterior valuables pocket
  • Anti-snag zipper sliders


  • Pricier than related fashions

The Nemo Sonic 0 strikes an ideal steadiness between weight, heat, and packability, making it an ideal alternative for a backpacking sleeping bag. Prime quality, dry-treated, 800-fill down is packed into chevron-shaped baffles, which hold it firmly in place. Consequently, the insulation evenly wraps the physique, stopping chilly spots. The smooth interior lighter felt easy towards my pores and skin, and the mum match was good—not too tight to maintain me from turning round in my sleep, however not so saggy as to depart me with extra area to warmth.

Nemo Sonic 0 Sleeping Bag laid out on grass
I stayed a lot heat sleeping within the Nemo Sonic 0. Corey Buhay

As an added good contact, the footbox is strengthened with an additional layer of artificial insulation and a water-resistant shell. The design offers further heat for chilly toes and repels moisture from moist tent partitions.

Finest Climate-Resistant: Feathered Mates Snowbunting EX 0

Finest Climate-Resistant

Feathered Friends Snowbunting EX 0 Sleeping Bag on gray and white background


  • Weight: 3 lbs, 4 oz.
  • Packed Quantity: 17 liters
  • Lengths: Common
  • Fill Energy: 800-fill down


  • Water resistant shell
  • Sturdy outer materials
  • Clean zipper motion
  • Greater-quality down than different baggage within the take a look at


  • Troublesome to compress
  • Crinkly outer materials
  • No valuables pocket
  • The most costly bag within the take a look at

Essentially the most expedition-ready sleeping bag on our listing, the Feathered Mates Snowbunting Ex defied each moisture and abrasion throughout preliminary testing. Credit score goes to the outer shell, a troublesome, water resistant, 15-denier ripstop Pertex Defend material. The neck baffle can also be coated in water resistant materials. This stored condensation from our exhales out of the principle bag, preserving loft and due to this fact heat. Fabricated from high-quality and responsibly sourced supplies—together with 800-fill down—this bag stored us heat even on the chilliest nights.

Feathered Friends Snowbunting EX 0 Sleeping Bag laid out on grass
We discovered rather a lot to like about this Feathered Mates sleeping bag. Corey Buhay

We appreciated the comfy draft collar and thick draft tube, which stored chilly air from sneaking in by way of the neck or facet zipper. The one massive draw back to this bag (except for the premium worth) is its packability. The rugged outer materials takes some critical effort to wrangle into its 17-liter stuff sack.

Finest Light-weight: Mountain Hardwear Phantom 0

Finest Light-weight

Mountain Hardwear Phantom 0 Sleeping Bag on gray and white background


  • Weight: 2 lbs, 11 oz. (common)
  • Packed Quantity: 9.7 liters
  • Lengths: Quick, common, lengthy
  • Fill Energy: 850-fill


  • Light-weight and simple to pack
  • Extraordinarily environment friendly performance-mummy reduce
  • Two-way zipper for simple venting
  • Glow-in-the-dark zipper pull is simple to search out at night time


  • Tight match and slender footbox could really feel claustrophobic to some sleepers
  • Restricted options and no stash pocket

In case you’re tackling massive miles and making an attempt to regulate your pack weight, look no additional than the Mountain Hardwear Phantom 0. This svelte, no-frills bag has been a mainstay inside the backpacking group for years. It’s not onerous to see why: the insulation is a premium 850-fill goose down packed right into a 10-denier nylon ripstop outer shell. These are extremely packable, high-quality supplies that compress simply right into a stuff sack that’s just below 10 liters. That makes the Phantom 0 far more compact than many backpacking baggage of equal heat.

A thick draft collar retains heat air trapped across the physique, and a two-way zipper makes it simple to free a leg on hotter evenings.

Finest for Girls: Huge Agnes Daisy Mae 0

Finest for Girls

Big Agnes Daisy Mae 0 Sleeping Bag on gray and white background


  • Weight: 2 lbs, 14 oz. (petite)
  • Packed Quantity: 21L
  • Lengths: Petite, common
  • Fill Energy: 650-fill


  • Pretty light-weight for a bag this heat
  • Excessive-quality insulation
  • Relaxed reduce very best for wider hips
  • Includes a sleeping pad sleeve and pillow sleeve


  • Not as packable as different fashions

Girls’s 0-degree sleeping baggage will be onerous to search out. To qualify as ladies’s baggage, they need to function not solely a roomier reduce and shorter size, but in addition extra insulation as ladies are inclined to sleep colder than males. However the Huge Agnes Daisy Mae 0 checks all these containers—and manages to return in at an inexpensive worth level. The comparatively low weight and worth come from a novel design. Not like different sleeping baggage, that are totally coated in insulation baffles, this bag has no insulation between your again and your sleeping pad (compressed down offers minimal heat, anyway). The backless design saves weight, giving this bag an amazing heat to weight ratio.

That mentioned, you will have a well-insulated sleeping pad for it to work successfully. We additionally cherished the Daisy Mae’s options: a sleeve within the hood retains pillows in place, and elasticized bands are designed to wrap round a sleeping pad, holding you from rolling off in the midst of the night time. The one draw back we may discover is that the Daisy Mae’s beneficiant insulation means it’s fairly cumbersome—not very best for a compact backpacking setup

Finest Artificial: Marmot Trestles Elite Eco

Finest Artificial

Marmot Trestles Elite Eco 0 Sleeping Bag on gray and white background


  • Weight: 3 lbs, 8 oz. (common)
  • Packed Quantity: 21L
  • Lengths: Common
  • Fill Energy: N/A (artificial fill)


  • Very affordable worth level
  • Inside valuables pocket
  • Blanket-fold secondary zipper
  • Fabricated from recycled supplies


  • Slender footbox can really feel restrictive

In case you want a heat sleeping bag—however don’t need to pay high greenback for down—the Marmot Trestles Elite Eco is a good choice. By utilizing solely artificial supplies, this bag manages to maintain prices low with out including an excessive amount of further weight. The mum form additionally eliminates extra materials—although stressed sleepers could discover the slender footbox a bit constricting.

A full side-length zipper, a secondary blanket-fold zipper, an exterior valuables pocket, and a hood cinch spherical out the options. We additionally love that this bag is comparatively compressible for an artificial; its distinctive mix of insulation fibers and 20-denier recycled polyester material make it simple to stuff into its included compression sack.

Finest Finances: Cabela’s Mountain Trapper 0

Finest Finances

Cabela's Mountain Trapper 0 Sleeping Bag on gray and white background


  • Weight: 10 lbs.
  • Packed Quantity: 30L
  • Lengths: Lengthy
  • Fill Energy: N/A (artificial fill)


  • Gentle flannel and cotton materials
  • Roomy, rectangular reduce
  • Extraordinarily reasonably priced worth level
  • Inside valuables pocket


  • Cotton and flannel materials supply poor water resistance
  • Cumbersome and tough to compress
  • Heavier than another bag we examined

Not like a lot of the baggage on this listing, the Cabela’s Mountain Trapper 0 is designed to really feel identical to your mattress at residence. The oblong reduce leaves loads of room to roll round at night time, and the smooth flannel lining feels acquainted subsequent to your pores and skin. However the very best a part of this bag is its low worth. At nicely below $200, it’s no less than one-third the price of most of the baggage we examined. The financial savings come from utilizing less-technical and lower-quality supplies. The bag’s shell is cotton canvas coated with a water-repellent end, and the inside of the bag is a smooth flannel. Whereas these materials really feel cozy, they have an inclination to soak up moisture, particularly as soon as the water-repellent end has rubbed off.

Likewise, the insulation is heat however not very compressible; this bag rolls up however doesn’t squish down sufficiently small to suit into a normal backpacking pack. Nonetheless, the Mountain Trapper is a good entry-level bag for automobile campers on the lookout for one thing that’s easy, snug, and heat.

What to Take into account When Selecting a 0-Diploma Sleeping Bag


There are two important varieties of sleeping bag insulation: down, and artificial. Down sleeping baggage—often filled with goose or duck down—are usually lighter-weight and extra packable. Nonetheless, if down will get moist, it’ll lose all its loft, which implies it gained’t hold you heat.

Four 0-degree sleeping bags rolled up on the grass
Insulate can have an effect on the general packability of a sleeping bag. Corey Buhay

Artificial sleeping baggage, however, retain heat even when moist. Nonetheless, they are usually heavier and bulkier. Along with being far more packable than artificial insulation, down additionally tends to be extra sturdy; that’s, it retains its loft longer. Artificial insulation, however, can get completely compressed over time if it’s left in its stuff-sack for too lengthy.


Opposite to what the grasp tags could point out, not all “0-degree” sleeping baggage are equally heat. Typically, the temperature listed on the bag’s label doesn’t precisely correspond to its temperature ranking. Typically, that hang-tag temperature is solely a measure of its “EN Restrict Score”—the bottom temperature at which the bag will hold you alive.

The true measure of a bag’s heat, nonetheless, is its “EN Consolation Score.” That is the temperature ranking at which the bag might be cozy sufficient to sleep soundly in. The truth is, a lot of the baggage on this listing have EN Consolation Scores of round 15°F. Meaning they solely really operate as 0-degree baggage for heat sleepers.

Remember that ladies are inclined to sleep colder than males, so ladies’s baggage are usually about 10 to fifteen°F hotter than males’s baggage for a similar labeled temperature. If you realize you sleep chilly and plan to come across nighttime temperatures of round 0°F, you’ll doubtless want to have a look at baggage with temperature scores of 0°F for consolation. These baggage may be labeled as -10-degree baggage or -15-degree baggage.

In distinction, if the bottom temperature you count on to come across is larger than about 15°F, it’s possible you’ll need to store three-season sleeping baggage as a substitute. Additionally remember that your sleeping bag will solely hold you heat in chilly temperatures when you have an insulated sleeping pad to go along with it. Your sleeping bag insulates you from the air round you, however your sleeping pad insulates you from the bottom. Search for closed-cell foam pads or inflatable pads with a excessive R-value, the usual metric for insulative energy.


Completely different cuts and options could make for a really totally different sleeping expertise. Mummy baggage are usually light-weight and hotter since they depart you with much less area to warmth. Nonetheless, some of us discover them claustrophobic. Luggage with an oblong reduce and additional zippers are usually heavier, however they make it simpler to stay out a foot when you get too scorching, or roll round and get cozy. Different nice options: a cinch wire across the hood, a fluffy baffle to seal in warmth round your neck, and a valuables pocket to stash gadgets like a cellphone or headlamp in order that the batteries don’t die within the chilly at night time .

Fill Energy

Fill energy is actually a measure of the standard of the down in a down sleeping bag. If the bag has 800-fill down, 900-fill down, or larger, it’s in all probability going to be fairly light-weight and packable—and but nonetheless fairly heat. Down that’s 600-fill or below is more likely to be bulkier, albeit a lot cheaper.


Q: What’s the most snug materials for a sleeping bag?

To gauge a sleeping bag’s next-to-skin consolation, take a look at the fabric of its interior lining. Some car-camping baggage have cotton or flannel linings, which may really feel fairly just like your sheets at residence. Nonetheless, most efficiency sleeping baggage have polyester or nylon linings. A lower-denier material—like a 10-denier or 20-denier nylon—will usually really feel thinner and due to this fact much less crinkly towards your pores and skin. Search for a “brushed” lining material in order for you an additional snuggly really feel. Taffeta liners, in distinction, are inclined to really feel extra easy and satiny, which some sleepers choose.

Q: Is it higher to sleep with much less garments in a sleeping bag?

Opposite to the previous wive’s story, sleeping bare in a sleeping bag is not going to hold you hotter. As well as, pores and skin oils, sunscreen, and bug spray can all get into your sleeping bag’s insulation, which may trigger it to clump collectively or wilt, making it colder over time. It’s greatest to sleep with a skinny base layer on each your high and backside. You need one thing that’s full-coverage and wicking however that isn’t so heat it’ll make you sweat.

Finest 0-Diploma Sleeping Luggage: Closing Ideas

The perfect sleeping baggage steadiness heat and luxury with weight and packability. They’re made of sentimental, sturdy supplies, they usually have all the precise zippers and baffles it’s worthwhile to seal in warmth whenever you want it—or vent it out whenever you don’t. In case you’re on the hunt for the proper sleeping bag, any of those we examined above will do.

Why Belief Us

For greater than 125 years, Discipline & Stream has been offering readers with trustworthy and genuine protection of outside gear. Our writers and editors eat, sleep, and breathe the outside, and that zeal comes by way of in our product critiques. You’ll be able to rely on F&S to maintain you updated on the very best new gear. And after we write a few product—whether or not it’s a bass lure or a backpack—we cowl the great and the dangerous, so you realize precisely what to anticipate earlier than you determine to make a purchase order.

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