Longzhuo Heated Sleeping Bag for Adults — USB-Powered, 3 Heating Levels, Waterproof Flannel, Keeps Warm to -20℉

Meet Longzhuo's Heated Sleeping Bag for adults—an all-season companion for camping, hiking, or any overnight outdoor adventure. Designed with a soft, skin-friendly flannel lining and a weatherproof shell, it blends practical warmth with everyday comfort. When paired with a suitable USB power source, this sleeping bag is designed to keep warmth down to -20℉, giving you flexibility without bulky gear.

Warmth that adapts to your night

• 4 heating zones distributed across the shoulder, back, hip, and feet deliver targeted warmth to core areas.
• Adjustable hood with a drawstring helps shield the head and shoulders from drafts for a cozy first-night feel.
• Two-way zipper enables easy entry and adjustable ventilation, so you can tailor comfort without waking a partner.

Three heat levels to fit conditions

• Low, medium, and high settings cover a wide range of winter and indoor needs (104–113°F, 113–122°F, 122–131°F).
• Powered by a 5V/2A USB source for instant warmth—compatible with power banks, USB chargers, and other portable supplies.

Comfortable, durable materials

• Ultra-soft flannel lining paired with a weatherproof outer shell (220T polyester) for durability and coziness.
• Designed to resist shedding and color fading, making it suitable for repeated outdoor use in damp or light rain conditions.

Power, portability, and practical design

• Compatible with any 5V/2A USB power source, with up to 24 hours of heat at the lowest setting on a single power bank.
• Lightweight at about 4.6 lbs and includes a rugged compression sack for compact storage and easy transport.
• Built-in battery pockets keep your power bank within reach, while back straps and an adjustable hood enhance fit.

What to expect in everyday use

Whether you’re staging a weekend in the woods, a late-season hike, or a chilly campsite, this sleeping bag aims to deliver reliable warmth and a comfortable night’s rest without excess bulk. It’s designed for straightforward setup and versatile use, so you can focus on the outdoors rather than the cold.

Note: Performance depends on the chosen power source and environmental conditions. Follow care instructions to maintain fabric softness and heating elements over time.