Best Mountain Warehouse Mummy Sleeping Bags of 2025

The Basecamp 200 XL Sleeping Bag is ideal for your spring and autumn adventures, providing comfort on cooler nights during camping, hiking, or backpacking trips. Its extreme rating means it can handle temperatures as low as 5°C, although this is for survival only. The hollow fibre insulation ensures you stay cosy and warm throughout your night outdoors. Additionally, its crushable design makes it easy to pack away without losing shape, allowing for hassle-free transport and storage.

The Summit 250 Sleeping Bag is designed for outdoor enthusiasts, providing an extreme temperature rating of -17°C for survival situations, although it's not meant for regular use at this temperature. As a 3/4 season bag, it offers warmth for cold nights, making it ideal for early winter backpacking trips and festivals. The hollow fibre insulation ensures you stay comfortable and cosy throughout the night. With both regular (200cm) and long (215cm) lengths available, you can find the perfect fit for your height, accommodating users up to 6'4".

The Basecamp 200 Kids Sleeping Bag is designed for warm nights, making it perfect for spring and summer camping trips. Its hollow fibre insulation ensures you stay comfortable and cosy during your sleep. You will appreciate its 'crushable' design, which allows the bag to maintain its shape even when packed away, making storage a breeze. The included carry bag makes it easy to transport, so you can take it with you on all your adventures.

The Mountain Warehouse Microlite Bag is an ideal choice for those seeking a reliable sleeping solution for various outdoor adventures. With an extreme rating of -30°C, it offers peace of mind during survival situations, although it is not intended for regular use at this temperature. As a 3/4 season bag, it ensures warmth for chilly nights and early winter backpacking trips. Its microfibre insulation provides excellent heat retention and comfort, making it a great synthetic alternative to down. The regular length accommodates users up to 180cm, ensuring a snug fit for most campers.

The Traveller 50 Sleeping Bag is designed for your comfort during autumn camping trips. With an extreme rating of -0°C, it ensures safety in survival situations, while the comfort temperature of 11°C to 14°C offers a cosy experience on warmer nights. This mummy-shaped bag is ideal for summer and indoor use, making it versatile for various settings. Its regular length accommodates users up to 180cm, ensuring a snug fit for most campers.

The Summit 300 Sleeping Bag is designed for versatility, suitable for temperatures ranging from -2°C to 4°C, ensuring you stay comfortable during your outdoor adventures. With an extreme rating of -18°C, it offers peace of mind for survival in harsher conditions, although it’s not intended for regular use at that temperature. The 3/4 season design makes it ideal for cold nights and early winter trips, providing extra warmth when you need it most. Its hollow fibre insulation adds a cosy touch, making for a snug night's sleep.

The Microlite 500 Sleeping Bag from Mountain Warehouse is designed for cooler nights during spring and autumn, making it ideal for festivals and backpacking trips. With an extreme rating of -6°C, it ensures you can survive in chilly conditions. The comfort temperature ranges between 11°C and 6°C, providing a cosy experience for most campers. Available in long length, it accommodates users up to 6'4", ensuring ample space for taller individuals.

The Summit Mini Sleeping Bag from Mountain Warehouse is designed for spring and summer camping and trekking adventures. It features an extreme rating, allowing you to use it in temperatures as low as -10°C, although this is only for survival. The 2/3 season design makes it ideal for cooler nights during spring and autumn, perfect for festivals and backpacking trips. Its envelope shape provides more space, ensuring comfort while you sleep. Additionally, the draw cord closure on the hood helps you retain body heat, keeping you warm and snug throughout the night.

The Basecamp 200 Sleeping Bag is perfect for warm nights during spring and summer camping trips. It features hollow fibre stuffing, ensuring you stay comfortable and cosy throughout your sleep. The lightweight design, weighing just 1kg, makes it easy to carry, allowing you to enjoy your outdoor adventures without the hassle of heavy gear. Additionally, it comes with a convenient carry bag for easy storage and travel, making it an ideal choice for your next camping excursion.

The Microlite 950 Sleeping Bag is designed for outdoor enthusiasts, offering an extreme rating of -16°C, ideal for survival situations. Its comfort temperature range of 0°C to 5°C ensures you stay cosy during spring and autumn camping trips. This 3-season bag is perfect for chilly nights at festivals or backpacking adventures. With a regular length of 200cm, it accommodates users up to 180cm tall, providing ample space for a comfortable night's sleep.