All-Season Comfort, Zero Bulk – Sleep Warm Anywhere, Anytime

Specifications:

• Color: Black

• Style: Mummy / Envelope Hybrid

• Size: 220 × 75 cm (86' × 29')

• Weight: 0.8kg / 1.8lbs

• Outer Fabric: 190T Tear-Resistant Polyester (Waterproof Shell)

• Inner Lining: Soft 190T Polyester Pongee (Skin-Friendly & Breathable)

• Filling: Hollow Cotton Insulation

• Temperature Range:

  • Summer Type: Comfort over 25℃

  • Spring/Autumn Type: Comfort 10℃–20℃

  • Winter Type: Comfort 0℃–10℃

• Ventilation Features:

  • Bottom zipper for adjustable airflow

  • Elastic drawstring hood for warmth retention

• Compression Bag: Included, reduces packed volume by half

• Best Use: Camping, hiking, backpacking, and outdoor overnight trips across all seasons

Features:

• 4-Season Flexibility: Available in multiple weights for summer, spring/autumn, and winter use

• Water-Resistant Shell: 190T polyester keeps out moisture and light rain

• Soft & Breathable: Skin-friendly pongee lining provides maximum comfort

• Thermal Efficiency: Hollow cotton insulation traps heat effectively

• Adjustable Ventilation: Elastic strap hood for cold nights, bottom zipper for warmer weather

• Compact & Portable: Comes with compression sack with tightening straps for easy packing

• Durable Build: Tear-proof outer fabric built for rough outdoor environments

• Lightweight Design: Easy to carry on hikes or backpacking trips

Product Description:

Engineered for year-round outdoor comfort, the 4-Season Mummy Cotton Sleeping Bag combines warmth, breathability, and versatility in one ultralight design. Featuring a durable 190T tear-proof polyester shell and filled with insulating hollow cotton, this sleeping bag reliably keeps you warm whether you're trekking through spring woods, camping in cool autumn nights, or braving light winter chill. The soft 190T polyester pongee lining is gentle against the skin and provides excellent airflow.

Thoughtful details like an elastic adjustable hood and a bottom ventilation zipper let you adapt your sleeping experience to changing temperatures. When it’s time to move, the included compression sack shrinks the bag’s size by half, making it easy to pack into your backpack or hang from your gear. With comfort-rated models for summer, spring/autumn, and winter, this sleeping bag is your all-in-one solution for cozy nights under the stars — no matter the season.