Best Zipper Sleeping Bag Expanders in 2026

Mummy-style adult sleeping bag for camping in temperatures as low as 0 degrees Fahrenheit

Can accommodate most people up to 6 feet 2 inches in height

Semi-sculpted hood tightens with a drawstring to seal in heat

0 Degree Sleeping Bag: Perfect cold weather sleeping bag features WR 800 fill power goose down insulation with a revolutionary microscopic ClusterLoft base to keep you warm from 0 - 30 F

Hiking Gear: Designed for thru-hiking, backpacking and camping, this ultralight sleeping bag boasts superior weight-to-warmth ratio at only 3.10 lbs for Regular; Sleeping bag stuff sack included

Hydrophobic Water Repellent: DWR-Coated camping sleeping bags for adults feature 400T 20 D ripstop nylon fabric liner, 2 large YKK zippers with anti-snag sliders, velcro, drawstring & vertical baffles

SUPERIOR MATERIAL: This lightweight sleeping bag with a perfect balance between warmth and quality. High air permeability shell combines with hollow fiber fillings provides a warm and dry space no matter in Winter or Summer! No more shivering uncontrollably sleeping in the backcountry. The fabric is waterproof and difficult to stain, easily to clean by wiping and also machine washable

LIGHTWEIGHT & COMPACT: If you're going to backpacking or researching a sleeping bag for kids, weight is going to be a big consideration. Clostnature sleeping bag is 7'3"x2'8"(HxW) and won't weigh much at all, only 3 pounds and could be compressed only 12'x8"x8". The compact sleeping bag also comes with a storage sack, easily to fit it into even by a child and no more folding or rolling worries. Handle on the storage sack convenient for your girl or boy to carry in the camping trip

VERSATILITY: A right zipper and a left zipper can be zipped together to a double sleeping bag for couple or family uses. This is a RIGHT zipper sleeping bag listing, you can find the LEFT zipper sleeping bag listing in Clostnature's Store. The separated zipper on the bottom offers better ventilation for your feet. And the cold weather sleeping bag could spread out as a 6'3"x5'3"(HxW) blanket for kids at home. All in all, it is your best sleeping bag for camping, backpacking, and hiking

1.FEEL THE DIFFERENCE - Farland Super Comfortable Sleeping Bags are designed to ensure that after a tiring day of trekking, hiking, travel or any other exploration you can get a good and relaxing night's sleep.Roll Control Design makes folding quick and easy ,Zip two together for double the room.

2.DESIGNED FOR COOL/COLD WEATHER – Our sleeping bags are designed for 20-62℉/-7-17℃. Moreover, these bags also have a waterproof, weather-resistant design to keep you warm even in extreme conditions and prevent you from any dampness - this is achieved through double-filled technology.

3.SIZE - Envelope-Shape Sleeping Bag measures 29.5 by 86.6 inches (W x D), Mummy-Shape Sleeping Bag measures 33.5 by 86.6 inches (W x D),and comfortably fits most campers up to five feet, 11 inches tall.

PRACTICAL COMPACT AND LIGHTWEIGHT DESIGN: Our sleeping bag is large enough to fit an adult 6'1"-6'6". Girth of shoulder/ hip/ foot: 63", 50.3" 33" nice for you comfortable sleeping. When folded and store in its carrying bag, the lightweight sleeping bag is easy to carry (1.62kg/3.6lbs).

STAY WARM AND COZY DURING THE NIGHT: Thanks to our innovative heat retention technology, quilted construction and insulated footbox, this fluffy mummy sleeping bag will keeps you comfort from 50 to 68℉ or more, keeps temperature limits to 32℉or more. The adult mummy bag also has a drawstring hood that keeps the warm air in and the cold air out and away from your head and neck.

WATER REPELLENT & RIPSTOP FABRIC: 210T ripstop polyester shell protects against windy and wet weather Keep you warm even in wet weather conditions and prevent you from getting damp. Thanks to the ripstop fabric (double-layer)is durable and resists damage from stones, branches and other natural elements.

TRAPEZOIDS, MAN: Turns out this funky shape is ideal for helping sleeping bags retain heat. Trapezoidal baffle construction improves our best selling Cosmic sleeping bag for 2021. Fan favorite and campsite staple with improved Thermal Efficiency

GET DOWN: Light, compressible, warm to boot; what’s not to love about Down Fill? The Cosmic features 550 fill Kelty treated DriDown insulation, with sustainably sourced materials that are easy to pack, use, dry, and keep your buns toasty.

ENTRY LEVEL VETERAN: Priced even lower for 2021, the Cosmic is more budget friendly than ever while retaining it’s well deserved reputation for a do-it-all backpacker’s slumber companion. First time campers and old timers rejoice

STEP UP YOUR COMFORT: This roomy bag provides more shoulder and leg room; Built-out footbox provides more room for your feet; Breathable and warm

STEP UP YOUR WARMTH: Lofty, lightweight, and highly compressible; Enjoy the unrivaled warmth of this water-resistant sleeping bag that you can take anywhere

STEP UP YOUR ADVENTURE: You can take this mummy sleeping bag anywhere; From backyard to backcountry, this is the bag you need to have a worry-free adventure

►REGULATE TEMPERATURE & PACK LIGHTER: Our micro polyester liner fabric weights only a few ounces, but can add another layer of insulation and warmth to your night’s sleep, which means you'll be more comfortable and have more energy the next day!

►KEEP YOUR SLEEPING BAG CLEAN: When the insulation in your sleeping bag is cleaner, it performs better keeping you warmer. By using our sleeping bag liners, you keep your sleeping bag clean of dirt, sweat and other debris. This means your bag stays cleaner and warmer for longer! Oh, and you can easily machine wash the bag liner whenever needed!

►FEELS LIKE HOME: Even though our technical Micro Polyester fabric is built be extremely tough and wick away moisture, it still feels like the sheets off your bed! Climb into the travel liner and feel like you're back in the comfort of your own bed!

Spirafil high loft Insulation for Maximum warmth and durability

Lightweight- highly compressible bag ideal when space and weight are at premium

Full length locking YKK two way zipper

Mummy-style 45-degree sleeping bag for backpacking and other outdoor activities; featuring SpiraFil high-loft insulation for maximum warmth and durability

EN rated as comfortable for men at a lower limit of approximately 45°F

Full-length, locking YKK two-way zipper

【 𝐋𝐈𝐆𝐇𝐓𝐖𝐄𝐈𝐆𝐇𝐓 & 𝐂𝐎𝐌𝐏𝐀𝐂𝐓 】Ultralight sleeping bag weighs only 1.81lbs, package size only 11.4" x 7.1", it's about half the weight and volume of a polyester sleeping bag! Very space saving! Each compact sleeping bag comes with a compression sack, suitable for camping, backpacking, hiking, expeditions, mountaineering, travel.

【 𝐊𝐄𝐄𝐏 𝐖𝐀𝐑𝐌 】Filled with 380g 600+ Fill Power selected premium duck down, the down sleeping bag keeps you stay in warm and dry. Pure natural and healthy material, fluffy and soft, no odor or impurities. Comfort temperature: 40°F-60°F. Double zipper and windproof strip design prevent cold air from entering. Mummy sleeping bag head shape fits the head better and keeps warm, the lower body is rectangular, you can move foots freely.

【 𝐋𝐀𝐑𝐆𝐄 𝐒𝐏𝐀𝐂𝐄 】The use size of our adult sleeping bag is 30.7"x84.6", more spacious than normal sleeping bags! The foot zipper can be opened for good ventilation. If you want to sleep with your family, you can also combine 2 sleeping bags into a two-person sleeping bag.

LIGHTWEIGHT AND WARM: Tired of your feet getting cold? This is the sleeping bag for you; Designed with added insulation in the footbox; Exceptionally warm and lightweight for backpacking

COMFORTABLE: Three-piece hood pulls in tightly around your face to keep your whole head warm; Foot box provides more room for your feet; Full-length zipper draft tube keeps the warm air in

NEVER ROLL YOUR SLEEPING BAG AGAIN: TETON provides a great compression sack for stuffing your sleeping bag; Start at the bottom and stuff the bag in, then tighten the heavy-duty straps

COMFORTABLE SLEEPING BAG FOR ADULTS: Soft lining; Half-circle mummy style hood keeps you warm and your pillow clean; Unzips at the top or bottom for easy access and ventilation; For camping in 3 seasons

NEVER ROLL YOUR SLEEPING BAG AGAIN: TETON provides a great compression sack for stuffing your sleeping bag; Start at the bottom and stuff the bag in, then tighten the heavy-duty straps

STAY WARM IN COLD WEATHER: You’ll be warm and rested in this sleeping bag; Innovative fiber fill, double-layer construction and draft tubes work together to keep the warmth in