Best 3 Seasons Mummy Sleeping Bags of 2026

The Trail Mummy Sleeping Bag is designed for ultimate warmth and comfort during your camping adventures. With its 300gsm hollowfibre filling and water-resistant polyester shell, you can enjoy a good night's sleep even in chilly conditions. Its snug mummy shape helps to trap your body heat, ensuring you stay warm, while the adjustable drawstring hood adds extra comfort for your head. The anti-snag 2-way zipper allows you to easily regulate the temperature, making it convenient to cool down when needed.

The Silentnight Mummy Sleeping Bag offers cosy comfort, ensuring you enjoy a restful night’s sleep wherever your adventures take you. Made from lightweight, soft fabric and filled with Softfill fibres, it provides a snuggly feel that enhances your comfort. Designed for three seasons, this sleeping bag is perfect for spring and summer camping trips, keeping you warm even when temperatures drop to -5° C. Its versatile design allows you to use it as a sleeping bag or unzip it for use as a cover, adding convenience to your outdoor experience.

The Trail Overnight Adventure is a fantastic sleeping bag designed for young campers aged 4 to 12. Its snug mummy shape and elasticated hood ensure warmth and comfort during chilly nights. You’ll appreciate the lightweight rucksack style carry bag, making it easy for your child to transport. Ideal for three-season camping, the sleeping bag features a water-repellent shell and hollowfibre filling, allowing for use in temperatures as low as -5˚C. Plus, with the two-way zipper, you can easily regulate temperature as needed.

The Vango Cadair 250 is designed for comfort during your outdoor adventures. Its single-layer stitch construction ensures an even fill distribution, keeping the bag lightweight while providing warmth. The soft microfibre lining fabric offers a cosy and breathable experience, perfect for a good night's sleep. Additionally, the mummy shape helps to reduce pack size and enhances thermal efficiency, making it easier for you to carry on camping trips or hikes. An internal pocket adds convenience, allowing you to store small essentials securely.

The Vango Cadair 250 is designed for comfort and warmth during your outdoor adventures. Its single-layer stitch construction ensures even fill distribution, keeping the weight down while maintaining insulation. The 100% polyester brushed fabric offers a soft, cosy feel, making it breathable and snug for a restful night’s sleep. The mummy shape not only reduces the pack size but also enhances thermal efficiency, so you can stay warm without lugging around excess weight. An internal pocket provides a handy space for storing small essentials.

The Trespass Kids Sleeping Bag is perfect for your child’s camping trips, sleepovers, or backyard adventures, featuring a bright and playful print to spark imagination and make bedtime fun. Its mummy shape keeps your child snug by reducing heat loss, ideal for spring to autumn use. The 2-way zip offers easy ventilation adjustments, allowing your child to stay comfortable in different temperatures. Plus, the elasticated hood fits securely to keep their head warm throughout the night, combining warmth and cosy convenience for young explorers.

The Green Haven Sleeping Bag is perfect for your 3-season outdoor adventures. With its 150gsm hollow fibre filling and waterproof polyester shell, you can rely on it to keep you warm in temperatures between 10-18°C and even as low as 5°C. Its snug mummy design and adjustable hood ensure you stay comfortable and insulated against chilly drafts. The anti-snag zippers allow for easy ventilation, so you can adjust your warmth on mild summer nights, making this sleeping bag a versatile choice for camping and hiking.

The Vango Treklite Ultra 600 is designed for optimal comfort and warmth during your outdoor adventures. Its OMEGA shaping enhances heat retention by strategically positioning zips and seams, allowing a snug fit around your head and shoulders. The Thermal Embrace System ensures the bag conforms gently to your body, minimising cold spots while letting you move freely. Made from 40 denier mini ripstop nylon, the bag is both water-resistant and breathable, providing a soft touch while ensuring durability for long-lasting use.