Best Synthetic Sleeping Bag Insulation

Sea to Summit Trailhead 20-Degree Synthetic Sleeping Bag, Regular

  • 20-degree Fahrenheit (-7-degree Celsius) synthetic sleeping bag for 3-season backpacking and travel.
  • relaxed mummy shape features shaped hood and zipper draft tubes for warmth.
  • Synthetic polyester insulation uses WaveLoft construction to maximize loft, expanding the insulation to trap warm air.
  • YKK zippers with full-length left-side zip with two sliders for ventilation and versatility.
  • can be fully unzipped for use as a quilt.
  • Relaxed mummy shape offers room to sleep comfortably.
  • removable straps on the underside attach to a sleeping pad.
  • Regular size bag has a max user height of six feet.
  • compresses to 10.2 liters with included compression sack.
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Sea to Summit Trailhead 30-Degree Synthetic Sleeping Bag, Long

  • 30-degree Fahrenheit (-10-degree Celsius) synthetic sleeping bag for 2-season backpacking and travel.
  • relaxed mummy shape features shaped hood and zipper draft tubes for warmth.
  • Synthetic polyester insulation uses WaveLoft construction to maximize loft, expanding the insulation to trap warm air.
  • YKK zippers with full-length left-side zip with two sliders for ventilation and versatility.
  • can be fully unzipped for use as a quilt.
  • Relaxed mummy shape offers room to sleep comfortably.
  • removable straps on the underside attach to a sleeping pad.
  • Long size bag has a max user height of six feet six inches.
  • compresses to 9.3 liters with included compression sack.
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The North Face Eco Trail Synthetic 35F / 2C Backpacking Sleeping Bag, TNF Yellow/Hemp, Regular-Right Hand

  • CAMP IN COMFORT. The Eco Trail Synthetic—35F is a light, durable and versatile sleeping bag. Proudly made with 100% recycled materials and featuring a wider cut at the knees, this is the perfect place to spend your nights in the great outdoors..
  • QUALITY CONSTRUCTION. Our 50% post-consumer recycled Heatseeker synthetic insulation has great warmth to weight ratio and can be easily packed into a stuff sack. Warm yet lightweight synthetic insulation makes this long lasting sleeping bag a camp staple..
  • THOUGHTFUL DESIGN. Slip into a carefully crafted bag offering a fitted hood with cinch-cord, draft collar and zipper baffle that prevent heat loss, extended width at the knees for maximum comfort and mobility, and a vaulted footbox for added warmth..
  • KEEP WARM. With a temperature rating of 35-degrees Fahrenheit (2 Celcius) and up, this sleeping bag will keep you warm and comfortable at the campsite. Please note: the temperature limit can fluctuate depending on regional weather conditions..
  • TECH SPECS. Weight: Regular: 2 lbs 7 oz (1106 g). Long: 2 lbs 12 oz (1246 g). Stuffsack Size: 8.5" x 15" (21.59 cm x 38.1 cm)..
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The North Face Eco Trail Synthetic 35F / 2C Backpacking Sleeping Bag, TNF Yellow/Hemp, Long-Right Hand

  • CAMP IN COMFORT. The Eco Trail Synthetic—35F is a light, durable and versatile sleeping bag. Proudly made with 100% recycled materials and featuring a wider cut at the knees, this is the perfect place to spend your nights in the great outdoors..
  • QUALITY CONSTRUCTION. Our 50% post-consumer recycled Heatseeker synthetic insulation has great warmth to weight ratio and can be easily packed into a stuff sack. Warm yet lightweight synthetic insulation makes this long lasting sleeping bag a camp staple..
  • THOUGHTFUL DESIGN. Slip into a carefully crafted bag offering a fitted hood with cinch-cord, draft collar and zipper baffle that prevent heat loss, extended width at the knees for maximum comfort and mobility, and a vaulted footbox for added warmth..
  • KEEP WARM. With a temperature rating of 35-degrees Fahrenheit (2 Celcius) and up, this sleeping bag will keep you warm and comfortable at the campsite. Please note: the temperature limit can fluctuate depending on regional weather conditions..
  • TECH SPECS. Weight: Regular: 2 lbs 7 oz (1106 g). Long: 2 lbs 12 oz (1246 g). Stuffsack Size: 8.5" x 15" (21.59 cm x 38.1 cm)..
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All Season Extra Large Sleeping Bag - Adult Sleeping Bag & Camping Sleeping Bag - Cold Weather & Summer Sleeping Bag - Waterproof Sleeping Bag & Compact Sleeping Bag - w/Hood & Free Compression Sack

  • 3 SEASON WARMTH AND COMFORT: The XL Prolite Sleeping Bag will keep you warm through spring, summer and fall. The XL Prolite features our patented ThermoCore synthetic insulation which will keep you warm from 40 - 60°F, keeping you warm even on the coldest fall and spring nights..
  • GENEROUS XL SIZING: At 88” x 34” The XL Prolite an extra large sleeping bag for adults and can comfortably fit anyone up to 6’6. The square foot design (rather than tapered mummy style) gives added foot and leg room so you can toss and turn to without feeling like you’re in a straight jacket!.
  • THERMOCORE SYNTHETIC INSULATION: Our patented TheroCore insulation combines lightweight performance with excellent heat retention. ThermoCore uses advanced synthetic fill to retain more body heat..
  • EASY TO CARRY: the oversize sleeping bag comes with a rugged compression sack that packs down to 16” x 8” x 8” - this is one of the most compact 3 season bags out there. Easy to pack in a daypack or strap to the outside or a backpack. Also, it weighs less than 4 pounds..
  • WATER RESISTANT SHELL: the ripstop polyester shell outer is both durable and water resistant, so you’ll be dry and warm on those dewy mornings..
  • 40 - 60°F TEMPERATURE CERTIFIED: The XL Prolite has is a super war....
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The North Face Eco Trail Synthetic 20F / -7C Backpacking Sleeping Bag, TNF Blue/Hemp, Long-Right Hand

  • CAMP IN COMFORT. The Eco Trail Synthetic—20 is a light, durable and versatile sleeping bag. Proudly made with 100% recycled materials and featuring a wider cut at the knees, this is the perfect place to spend your nights in the great outdoors..
  • QUALITY CONSTRUCTION. Our 50% post-consumer recycled Heatseeker synthetic insulation has great warmth to weight ratio and can be easily packed into a stuff sack. Warm yet lightweight synthetic insulation makes this long lasting sleeping bag a camp staple..
  • THOUGHTFUL DESIGN. Slip into a carefully crafted bag offering a fitted hood with cinch-cord, draft collar and zipper baffle that prevent heat loss, extended width at the knees for maximum comfort and mobility, and a vaulted footbox for added warmth..
  • KEEP WARM. With a temperature rating of 20-degrees Fahrenheit (-7 Celcius) and up, this sleeping bag will keep you warm and comfortable at the campsite. Please note: the temperature limit can fluctuate depending on regional weather conditions..
  • TECH SPECS. Weight: Regular: 3 lbs 14 oz (1756 g). Long: 4 lbs 5 oz (1959 g). Extra Long: 4 lbs 12 oz (2150 g). Stuffsack Size: Regular/Long: 10" x 18" (25.4 cm x 45.7 cm). Extra Long: 11" x 20" (27.9 cm x 50.8 cm)..
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The North Face Cat s Meow 20F / -7C Backpacking Sleeping Bag Blue Wing Teal/Zinc Grey LNG - RH

  • CAMP IN COMFORT. Our classic Cat's Meow is a 20-degree sleeping bag that features lightweight Heatseeker Guide insulation, water-repellent finish and....
  • RECYCLED INSULATION. Our 50% post-consumer recycled Heatseeker synthetic insulation has great warmth to weight ratio and can be easily packed into a....
  • QUALITY CONSTRUCTION. This sleeping bag is designed with a fitted hood, draft collar and zipper baffle for increased comfort and to prevent heat loss.....
  • KEEP WARM. With a temperature rating of 20-degrees Fahrenheit (-7 Celcius) and up, this sleeping bag will keep you warm and comfortable at the camp....
  • TECH SPECS. Weight: Short: 2 lbs 1 oz (935 g). Regular: 2 lbs 4 oz (1020 g). Long: 2 lbs 7 oz (1105 g). Extra Long: 2 lbs 11 oz (1260 g). Stuffsack....
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SITKA Gear Unisex Adult Kelvin Aerolite 30 Packable Sleeping Bag, Lead, Regular (up to 6')

  • MULTIFUNCTIONAL LAYER - The Kelvin Aerolite 30 Sleeping Bag is a multifunctional layer for active time in camp, cold glassing sessions or dreaded midnight nature calls.
  • jacket-like features include zippered armholes.
  • contoured shoulders, and a center-front two-way zipper.
  • PRIMALOFT GOLD INSULATION - Synthetic PrimaLoft Gold Insulation with Cross Core technology replicates the aesthetics and performance of down insulation, but with warm-when-wet performance.
  • LIGHTWEIGHT INSULATION - Lightweight insulation (35% recycled) is infused with silica aerogel, a nearly weightless material that’s composed of more than 95% air and acts as additional thermal insulation.
  • FEATURES - Stowed hook at bottom of bag connects to midlength interior loop.
  • contoured shoulders and hood for a shaped and functional jacket-like fit when active.
  • shaped footbox provides even warmth around your feet.
  • BREATHABLE SLEEPING BAG - Featuring a 30-degree comfort rating, it’s designed to be an extension of your SITKA clothing systems for full-season performance.
  • DWR-finish resists precipitation and prevents face fabric from wetting out.
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Big Agnes Farrington Lightweight Synthetic Sleeping Bag, Gray/Shale, Regular Length, Right Zipper

  • Take it on your summer backpacking adventures or use it to add additional warmth.
  • Stands alone as a minimalist travel bag or can be used as a liner or over bag.
  • Keeps your sleeping bag clean and protected while adding warmth.
  • 3/4 zip allows for venting when you need it and thermal protection when you don't.
  • Hooks located at the head and foot allow for easy attachment to sleeping bag liner loops.
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