Naturehike Envelope Hooded USB-Heated Cotton Sleeping Bag

Naturehike Envelope Hooded USB-Heated Cotton Sleeping Bag – Heating Version (Model BE400)

Description:

Naturehike’s BE400 is the USB-heating variant of the CNK2300SD021 envelope-style sleeping bag. Featuring an integrated electric heating layer, this model offers extended warmth for cooler nights while retaining the comfort and convenience of the classic design. Available in two color options—brown with left-side zipper and blue with right-side zipper—it blends functionality with quick visual identification.

Key Features:

• USB-Powered Heating Pack: Offers added warmth to extend comfort in cold conditions (indoor or outdoor). 
• Envelope-Style with Hood: Maintains generous interior space and head coverage for enhanced warmth. 
• Fabric & Insulation: Crafted with 210T polyester pongee shell, 80 gsm washed cotton lining, hollow cotton fill, and flannel inner layer for a soft and insulating feel. 
• Color-Coded Zipper Orientation: Brown color variant features a left-side zipper, while blue features a right-side zipper for easy identification. 

Specifications:

• Model: BE400
• Dimensions (Open): 190 + 30 × 80 cm 
• Weight: Approx. 2.94 kg 
• Packed Size: Approx. 28 × 28 × 40 cm 
• Comfort Temperature: Approx. –1 °C 
• Colors & Zipper Side:
  •  – Brown (left-side zipper)
  •  – Blue (right-side zipper) 

This heated sleeping bag offers reliable warmth, smart design, and practical color-coded features, making it a great companion for campers who camp in cold temperatures or need a quick visual reference when packing multiple bags.