• Blue sleeping bag on a camping mat with a bear and 'Biggreenb Trail' sign in the background. big green bear
  • Camping scene with a bear outside a tent, sleeping bag, and backpack inside.
  • Blue sleeping bag on a forest floor with a bear and 'BIGGREENBEAR TRAIL' sign in the background.
  • Blue sleeping bag on a wooden bench with a bear in the background, promotional text about comfort and safety in the wilderness.
  • Sleeping bag on the ground with a bear in the background, surrounded by trees and mountains.
  • Blue sleeping bag with black zipper on grass, bear in background, text about reliability.
  • Blue sleeping bag rolled up and compressed, with camping scene and bear in background
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Biggreenbear.com

Waterproof Backpacking Mummy Sleeping Bag

Waterproof Backpacking Mummy Sleeping Bag

$59.99 USD
$59.99 USD
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Premium 4-Season Ultralight Mummy Sleeping Bag

Conquer every trail and sleep soundly under the stars with our Premium Ultralight Mummy Sleeping Bag. Engineered for dedicated backpackers, casual campers, and rugged adventurers alike, this all-season sleeping bag delivers the perfect balance of featherlight packability and cold-weather defense. Whether you are trekking through mountain passes or setting up camp at a local site, its advanced heat-retention technology ensures you wake up refreshed and ready for the day's journey.


Key Features & Product Benefits

  • All-Weather Shielding: Crafted with a heavy-duty 170T water-resistant polyester outer shell to repel morning dew, drizzle, and damp ground conditions.
  • Intelligent Heat Retention: Features a built-in neck and shoulder insulation tube alongside a full-length zipper draft tube to lock in body heat and block freezing drafts.
  • Contoured Drawstring Hood: The anatomical hood fully covers your head and tightens with a secure drawstring to optimize warmth in colder climates.
  • Breathable Interior Comfort: Lined with a soft poly-cotton blend fabric that feels smooth against the skin while managing moisture for a sweat-free night.
  • Featherlight Architecture: Weighing a mere 1.5 pounds and compressing down into a compact profile, it leaves plenty of room in your pack for vital gear.


Complete Specifications

  • Color: Deep Blue
  • Occupancy: 1 Person (Adult)
  • Seasons: All Seasons (4-Season Versatility)
  • Temperature Comfort Zone: 30°F to 60°F (Optimal rating 50°F)
  • Shell Material: 170T Waterproof Polyester
  • Lining Fabric: Premium Poly-Cotton Blend
  • Insulation Fill: 300g/m² High-Loft Polyester Fiber
  • Unfolded Dimensions: 87 inches (Length) x 31 inches (Width)
  • Packed Dimensions: 7 x 7 x 14 inches
  • Total Weight: 1.5 Pounds
  • Closure System: Reversible Anti-Snag Zipper


Outdoor Performance Comparison


Feature Our Ultralight Mummy Bag Standard Envelope Bags
Total Weight 1.5 lbs (Ultralight) 3.5 lbs+ (Heavy)
Draft Protection Insulated Neck & Zipper Tubes None / Basic Fabric Only
Pack Size Ultra-Compact (7" x 14") Bulky & Difficult to Pack
Hood Design Form-Fitting Drawstring Hood Flat / Open Top


What is in the Box?

  • 1 x Ultralight Single-Person Mummy Sleeping Bag (Blue)
  • 1 x Heavy-Duty Compression Carrying Sack


Care and Maintenance Instructions

  1. Spot Cleaning: Wipe away light dirt or mud with a damp cloth and mild soap.
  2. Machine Washing: Use a front-loading washing machine on a gentle, cold cycle with mild detergent. Do not use a top-loader with an agitator.
  3. Drying: Air-dry flat in a shaded area. If using a dryer, select the lowest heat settings or fluff cycle with clean tennis balls to restore insulation loft.
  4. Storage: Keep the bag stored loosely in a dry location when not in use for extended periods to preserve the fiber fill density.


Frequently Asked Questions

Is this sleeping bag suitable for freezing winter conditions?
The sleeping bag features a comfort zone rating between 30°F and 60°F. While it handles light frosts and chilly nights excellently due to its draft tubes, it is best paired with a high-R-value sleeping pad during extreme sub-zero winter camping.
Does the zipper catch easily when opening or closing?
No. This bag is built with an integrated anti-snag draft tube along the zipper track to ensure smooth, seamless operation every time.
Can a tall adult comfortably fit inside this sleeping bag?
Yes. With an unfolded length of 87 inches (over 7 feet), it comfortably accommodates tall adults while leaving ample toe box room.


Gear Up with Confidence

Invest in reliable outdoor performance today. Your next great adventure is waiting, and we make sure you are fully prepared to take it on.
  • 30-Day Money-Back Guarantee: If you are not completely satisfied with your sleep quality, return it within 30 days for a hassle-free, full refund.
  • Fast & Secure US Shipping: Shipped directly from our domestic warehouses to your doorstep with end-to-end tracking data provided.
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