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Hotbed Spark 35 Sleeping Bag

Only 5 items available Only 5 items available Only 5 items available
Hotbed Spark 35 Sleeping Bag is available for purchase in increments of 1

Designed for the camper who’s ready to do more backpacking, this ultra-warm synthetic bag is filled with Thermal Q® insulation and sports vertically welded Lamina™ construction on top to maximize loft and eliminate cold spots where you need it most. Roomy mummy cut can be mated to a second bag using the full-length zipper.

  •  Proprietary, vertically welded Lamina™ construction enhances loft and eliminates cold spots
  • Roomy, comfortable, relaxed fit efficiently maximizes warmth without constriction
  • Included microfleece-lined stuff sack that doubles as a pillow and a mesh storage bag
  • Full length #5 zipper with double sliders for versatile ventilation also allows two Hotbed™ bags to be zipped together (LH bag to RH bag)
  • Thermal Q® insulation has outstanding compressibility and maintains excellent loft
  • Comfort footbox follows natural foot position for maximum warmth and comfort
  • Face gasket comfortably blocks drafts at hood opening
  • Insulated draft tube with anti-snag panel prevents cold spots along zipper
  • Single-handed draw cords adjust hood and chest closure


Body Material:   75D Polyester Taffeta (100% Polyester)

Insulation Material:   Thermal.Q™ Thermic MX (100% Polyester)

Liner Material:   75D Polyester Taffeta (100% Polyester)

Bag Fill Type:   Synthetic

Sizing:   Regular, Long (both RH & LH options)

Weight:   2lbs. 9 oz. (1.17 kg)

Bag Shape:   Comfort Mummy Cut

Bag Loft:   3" (8 cm)

Bag Stuff Size:   8" x 14" (20 cm x 36 cm)

EN Rating (Limit):   35° F ( 2° C)

EN Rating (Comfort):   43° F ( 6° C)

Inside Length (Regular):   78" (198 cm)

Hip Girth (Regular):   59" (150 cm)

Foot Girth (Regular):   41" (104 cm)

Shoulder Girth (Regular):   63" (160 cm)