Ultralight Waterproof 4 Season Envelope Camping Sleeping Bag

Sleep Comfortably Anywhere – The Ultimate Camping Sleeping Bag

Whether you're backpacking through mountain trails, car camping under the stars, or setting up at a festival, the Ultralight Waterproof Envelope Sleeping Bag by Sponge Traveller is your go-to sleep system for all-season adventures. Built tough, yet soft enough for a great night's sleep, this bag combines performance and portability in one compact package.

Made in Mainland China.

Key Features

• Durable & Water-Resistant Shell: Crafted from 190T anti-tear polyester with a waterproof outer shell, this sleeping bag locks in warmth even in damp or wet conditions.
• Soft, Skin-Friendly Interior: The inner lining is made from 190T polyester pongee — breathable, ultra-soft, and gentle against your skin for a cozy night's rest.
• Hollow Cotton Fill: Generous hollow cotton filling provides excellent insulation, keeping you warm during spring, autumn, and mild winter nights (comfort temperature: 5°C–15°C / 41°F–59°F).
• Versatile Temperature Ratings: Available in multiple seasonal variants — Summer (25°C+), Spring/Autumn (10°C–20°C), and Winter (0°C–10°C) — so you can find the perfect match for your climate.
• Envelope Style with Smart Zipper Design: The generous envelope shape gives you room to move, while the bottom zipper lets you vent your feet for airflow when temperatures rise.
• Spliceable Design: Connect two sleeping bags together to create a double sleeping bag — perfect for couples or extra room on cold nights.
• Ultra-Compact & Packable: Comes with its own compression bag featuring two tightening straps. Compresses to roughly half its original size, making it easy to fit in or attach to your backpack.
• Lengthened Fit: Designed for adults up to 1.8m–2m (5'11"–6'7") in height for a comfortable, full-length sleep experience.

Specifications

Why Choose This Sleeping Bag?

From weekend hiking trips to extended backcountry expeditions, this sleeping bag is engineered to keep you warm, comfortable, and ready for whatever the outdoors throws at you. Its lightweight, compressible design means it won't weigh you down on the trail, and the versatile temperature range makes it suitable for most three-season adventures.

Explore More Outdoor & Camping Essentials

• 1.5L Hydrogen Water Bottle – Portable Hydrogen-Rich Sports Kettle – Stay hydrated on every adventure.
• 1000ML Portable Urinal Bottle – Unisex Travel & Camping Aid – A handy companion for long outdoor trips.

Expert Camping Resources

For expert guidance on outdoor safety and Leave No Trace principles, visit the National Park Service Camping Guide.

Frequently Asked Questions

Q: What temperature rating is this camping sleeping bag suitable for?

A: This sleeping bag (Spring/Autumn variant) is designed for comfortable temperatures between approximately 10°C and 20°C (50°F–68°F). Other variants are available for summer (25°C+) and winter (0°C–10°C) use, so you can choose the right bag for your specific camping conditions.

Q: Is this sleeping bag suitable for tall adults?

A: Yes! This sleeping bag features a lengthened design measuring 220 x 75 cm (86" x 29"), making it comfortable for adults up to 2 metres (approximately 6'7") in height.

Q: Can two sleeping bags be zipped together to make a double?

A: Yes, this envelope-style sleeping bag features a spliceable design, allowing you to connect two compatible bags together for a double sleeping bag — ideal for couples or those who prefer extra room.

Q: How compact does the sleeping bag pack down?

A: The sleeping bag comes with its own compression bag featuring two tightening straps. When compressed, it reduces to roughly half its original volume, making it easy to fit inside or attach to the outside of a standard backpack.

Q: Is the outer shell of this sleeping bag waterproof?

A: Yes, the outer shell is made from 190T anti-tear polyester with a waterproof finish, helping to repel moisture and keep the hollow cotton fill dry and insulating during damp outdoor conditions.