The Lowdown

Quilt or Sleeping Bag? Who Should Make the Switch

A quilt saves weight by leaving things out. Whether you'll miss them depends on how you sleep and how cold your nights get.

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A quilt weighs less than a comparable sleeping bag, packs smaller, and lets you sprawl the way you do under a blanket at home. They also leave you a little more exposed, and on a cold night that matters.

So who should switch? It mostly comes down to three things: how you sleep, how cold your trips get, and how much fiddling you’ll put up with at bedtime. What follows draws on REI Expert Advice, Garage Grown Gear, and the quilt and sleeping bag tests from Treeline Review, CleverHiker and Outdoor Life, with picks for each kind of sleeper. Prices change too often to list here, so check the current price before you buy.

Quick picks
  • Best quilt overallWestern Mountaineering AstraLite: CleverHiker's best quilt overall, at exactly one pound. Check the price on Amazon
  • Best budget quiltOutdoor Vitals StormLoft Down TopQuilt: Treeline's best affordable quilt, and warmer than its rating in their testing. Check the price on Amazon
  • Best first quiltTherm-a-Rest Vesper: Outdoor Life's best quilt for beginners in its 2024 test. Check the price on Amazon
  • Best bag for side sleepersWestern Mountaineering TerraLite: CleverHiker's most comfortable bag, with room to turn over. Check the price on Amazon
  • Best for cold sleepersWestern Mountaineering UltraLite 20: one of the best warmth-to-weight bags CleverHiker has tested. Check the price on Amazon
  • Best for winter tripsMountain Hardwear Phantom 0: CleverHiker's winter specialist, with a 13°F comfort rating. Check the price on Amazon
Morning mist drifts over a still pond that mirrors a steep, pine-covered hillside under a clear blue sky
“Bigelow Pond, Bigelow Hollow State Park” by Jesse Goodier, public domain · Source

Where the weight savings come from

A quilt is a sleeping bag with the parts you can live without taken out. Garage Grown Gear explains that a quilt “saves weight by eliminating the full-length zipper, and by not having any insulation underneath the sleeper.” There’s no hood either.

The missing bottom is the clever part. Down only keeps you warm when it’s lofted, and the down under you in a sleeping bag is squashed flat. As Garage Grown Gear puts it, “you aren’t actually getting any warmth from the down that’s being crushed under your body while you sleep.” In a quilt, your sleeping pad does that job instead. That’s why REI lists needing a pad “for optimal warmth and comfort” as one of a quilt’s downsides: the pad stops being an accessory and becomes half your sleep system.

How much do you save? It depends on the models. Garage Grown Gear says quilts are lighter than comparable mummy bags “by at least a few ounces.” CleverHiker adds a fair warning: “a lighter model is not necessarily better if it needs added layers or compromises warmth.”

The case for switching

A quilt makes the most sense if one of these sounds like you:

The case for keeping your bag

A sleeping bag is still the better choice for plenty of backpackers:

What about side sleepers? This is where the experts split. Treeline and CleverHiker both call quilts a good fit for side sleepers, mostly because there’s no mummy bag twisting around you when you roll. But drafts are the quilt’s weak spot. Outdoor Life says quilts “typically struggle with drafts in one of two ways”: at the sides or up by your head. Even Treeline, testing a quilt it otherwise liked, wrote, “Whenever we moved, we ended up with a cold draft creeping in along the edge.” If you’re a side sleeper who also sleeps cold, a roomy bag may serve you better than a quilt. The TerraLite below is built for exactly that.

If you do switch

A few habits make a quilt much warmer:

This is general gear advice. Check the forecast for where you’re going, and plan your sleep system for the coldest night of the trip, not the average one.

Picks for each kind of sleeper

If you land on the bag side and want a budget or ultralight option, The Lowdown’s roundup of five sleeping bags backpackers love covers those. The bags below are for side sleepers, cold sleepers and winter trips.

A few top-rated quilts aren’t linked here. Treeline’s best overall, the Katabatic Palisade 30, and the Enlightened Equipment Enigma 20, the favorite quilt in CleverHiker’s sleeping bag guide, are sold mainly direct from their makers. Treeline also likes the NEMO Pulse 20/30 and the ZenBivy Ultralight Quilt 25, but the testers we read link them to REI and other shops, not Amazon. All four are worth a look if you’re shopping beyond Amazon.

Best quilt overall: Western Mountaineering AstraLite

What testers found: CleverHiker names the AstraLite its best backpacking quilt overall, citing its “one-pound weight, strong warmth results, easy pad attachments, and well-fitted neck closure.” It has a sewn footbox and a contoured neck baffle, and its pad straps were easy to adjust.

The catch: It’s expensive, and CleverHiker calls it “deliberately narrow, so hikers who want blanket-like space should look elsewhere.” Restless sleepers may feel hemmed in.

Best for: Three-season backpackers who want the lightest reliable setup and sleep fairly still.

Check the price on Amazon

Best budget quilt: Outdoor Vitals StormLoft Down TopQuilt

What testers found: Treeline Review gives the StormLoft its best affordable award and calls it “an all-around great quilt for backpacking and thru-hiking.” Its testers found it “warmer than temperature rating implies” and liked how small it packs. Treeline lists the 15-degree version at 23 ounces. Outdoor Life named it best budget quilt too, noting it was the lowest-priced quilt in its test yet still competitive on warmth for the weight.

The catch: It’s “not as light as some quilts,” Treeline says, and Outdoor Life found the stuff sack tended to trap air.

Best for: Anyone curious about quilts who’d rather not pay premium prices to find out.

Check the price on Amazon

Best first quilt: Therm-a-Rest Vesper

What testers found: Outdoor Life picked the Vesper as its best quilt for beginners in a test last updated in 2024. Its testers “praised the skin feel and toasty footbox.”

The catch: The neck button “had a tendency to open up” during the night. The test is also a couple of years old, so check the current version’s details.

Best for: Sleeping bag users trying a quilt for the first time.

Check the price on Amazon

Best bag for side sleepers: Western Mountaineering TerraLite

What testers found: CleverHiker calls the TerraLite its most comfortable backpacking sleeping bag. Its “semi-rectangular shape gives side sleepers and larger hikers far more room.” The extra space is “slightly less thermally efficient than a tight mummy, but the warmth remains impressive.” CleverHiker also likes how nicely the hood cinches.

The catch: CleverHiker says “the price is high, the black interior makes small items difficult to find, and the stuff sack feels fragile.”

Best for: Side sleepers who want room to roll without a quilt’s drafts.

Check the price on Amazon

Best for cold sleepers: Western Mountaineering UltraLite 20

What testers found: CleverHiker calls the UltraLite 20 “one of the best warmth-to-weight combinations we’ve tested in a traditional sleeping bag” and lists it at 1 pound 13 ounces. It’s one of the bags CleverHiker recommends for hikers “who want a more self-contained cold-weather system” than a quilt.

The catch: It’s expensive and “can feel narrow to broad-shouldered or active sleepers.”

Best for: Cold sleepers on chilly three-season trips who want a bag’s warmth at close to a quilt’s weight.

Check the price on Amazon

Best for winter trips: Mountain Hardwear Phantom 0

What testers found: CleverHiker calls the Phantom 0 “the clear winter specialist” in its test, and says its 13°F comfort rating “is the number we use for planning.” That’s the kind of night where REI says a bag beats a quilt.

The catch: “At 2 pounds, 10.6 ounces it is heavy for normal three-season trips, and the narrow fit will not suit everyone.”

Best for: Backpackers who camp through real winter cold and want the margin.

Check the price on Amazon

The bottom line

If you sprawl, sleep warm and mostly backpack in mild weather, make the switch. The Western Mountaineering AstraLite is the top pick, and the Outdoor Vitals StormLoft is the budget way to try one. If you sleep cold, expect freezing nights or are just starting out, keep a bag: the TerraLite for side sleepers, the UltraLite 20 for cold sleepers. Owning one of each isn’t a bad place to end up, either.

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