The Naturehike Penguin Cotton Sleeping Bag is the cold-weather companion that doesn’t compromise on comfort. Rated for temperatures from 0°C to 5°C, this mummy-style bag is filled with imitation feather cotton — a high-loft synthetic fill that mimics the warmth of down while being easier to care for and more resistant to moisture. The washed cotton lining is soft against skin and breathable, creating a ly comfortable sleep environment even on the coldest autumn and winter nights. Available in two fill weights — P300 (1.5 kg) for milder cold and P400 (1.85 kg) for deeper winter conditions — and sized at a generous 220 × 80 cm to accommodate adults up to 2 m tall. The splicing zipper lets you connect two bags for a double configuration when the night demands it. Specifications Specification Detail Brand Naturehike Model NH21MSD03 (Penguin) Style Mummy Filling Imitation Feather Cotton Outer Fabric Chunya Spinning / Terylene Lining Washed Cotton Temperature Rating 0°C to 5°C Season Spring, Summer, Autumn, Winter Unfolded Size 220 × 80 cm Suitable Height 1.8 m – 2.0 m (Lengthened) Splicing Yes – single or double configuration Applicable Users Adults P300 Weight 1.5 kg P400 Weight 1.85 kg Color Guanghan Brown Why Choose the Naturehike Penguin? Imitation Feather Cotton Fill: High-loft synthetic fill delivers down-like warmth without the moisture sensitivity or high cost of down. Washed Cotton Lining: Soft, breathable, and skin-friendly — the kind of lining that makes you actually look forward to getting into your sleeping bag. Two Fill Weights: P300 for milder cold, P400 for deeper winter conditions — choose the insulation level your adventure demands. Extended 220 cm Length: Fits adults up to 2 m tall comfortably — no more cramped footboxes on cold nights. Naturehike Quality: Backed by a globally recognized outdoor brand with a reputation for reliable, well-engineered gear. I For Autumn and winter camping trips Cold-weather backpacking and trekking Campers who want down-like warmth without the down price Tall adults (up to 2 m) needing a lengthened fit Couples camping (splicing two bags together) In the Box 1 × Naturehike Penguin Cotton Sleeping Bag (P300 or P400 as selected) 1 × Compression carry bag