BISINNA Cotton Flannel Sleeping Bag | 3-Season Envelope for Adults

Overview

Meet the BISINNA Cotton Flannel Sleeping Bag, crafted for adults who love outdoor adventures and a cozy night under the stars. With a 3-season envelope-style design, it balances roominess and warmth for versatile trips—from rugged backcountry treks to car-camping sessions. Measuring 75 x 33 inches, it provides generous space for movement and comfort, even for sleepers up to 6 feet tall. The bag is notably wider than many standard options, helping you settle into your preferred sleep position after a full day outside.

Roomy Comfort You Can Feel

The interior features a soft, skin-friendly flannel lining that delivers a gentle touch against the skin. The outer fabric uses 190T tear-resistant polyester, chosen for durability in the field, and it carries waterproof and windproof properties to handle light rain or cool breezes. Inside, hollow fiber fill adds warmth without unnecessary bulk, making the bag suitable for both indoor use and outdoor explorations.

• 75 x 33 inches of space supports stretching and comfortable shifting during sleep.
• Designed for adults up to 6 feet tall with a roomy, unrestricted feel.
• Roll control design and a compression sack simplify packing and folding on the go.

Two Warmth Options for Flexible Nights

This bag comes in two fill-weight versions, offering different comfort ranges to match conditions. The 2.4 lb option provides cozy warmth around 68°F (20°C) with a 41–68°F (5–20°C) comfort range. The 3.3 lb option targets cooler nights, delivering comfort around 59°F (15°C) and a 32–59°F (0–15°C) range. Together, they cover a broad spectrum of outdoor weather without needing extra gear.

• 2.4 lb version: comfortable for milder nights and temperate camping.
• 3.3 lb version: suitable for cooler shoulder-season conditions.

Practical Design Details

Several thoughtful features help maintain warmth and convenience. A draft tube along the zipper blocks cold air from creeping in, while a Velcro strap keeps the zipper in place to prevent heat loss. If the night warms up, you can unzip the bottom to let your feet breathe and stay comfortable.

• Draft tube reduces cold air entry for steadier warmth.
• Zipper Velcro strap minimizes heat loss by keeping the zipper secure.
• Bottom unzip option provides adjustable airflow on warmer nights.

Portability for Everyday Adventures

Built for both indoor and outdoor use—camping, hiking, or car travel—the BISINNA sleeping bag is designed to travel with you. It includes a compression sack for compact storage and a roll-control design that makes packing after a trip quick and straightforward. The combination of durable fabric, soft lining, and practical features offers a dependable companion for many seasons of outdoor life.