Best Mountain Warehouse Mummy Sleeping Bags of 2026

Luke Dobson Avatar
Luke Dobson
Last Updated: 9 Feb 2026

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Mountain Warehouse offers a range of mummy sleeping bags suitable for camping and outdoor adventures. These sleeping bags are designed to keep you warm and comfortable during chilly nights. The mummy shape helps to retain heat and the insulated hood provides extra warmth for your head and neck. These sleeping bags are available in various sizes and colours to suit your preferences. Whether you are a seasoned camper or a first-time adventurer, Mountain Warehouse's mummy sleeping bags are a great investment to keep you cosy on your next trip.

At a Glance: Our Top Picks

Mountain Warehouse Summit 300 Sleeping Bag - Long Length Cover #TOP 1
Mountain Warehouse Summit 300 Sleeping Bag - Long Length
ftb score rating icon 9.8
Mountain Warehouse Basecamp 200 Kids Sleeping Bag Cover #TOP 2
Mountain Warehouse Basecamp 200 Kids Sleeping Bag
ftb score rating icon 9.7
Mountain Warehouse Traveller 50 Sleeping Bag for Camping Cover #TOP 3
Mountain Warehouse Traveller 50 Sleeping Bag for Camping
ftb score rating icon 9.5

Top 7 Mountain Warehouse Mummy Sleeping Bags

#TOP 1

Mountain Warehouse Summit 300 Sleeping Bag - Long Length

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Mountain Warehouse Summit 300 Sleeping Bag - Long Length Cover
Mountain Warehouse Summit 300 Sleeping Bag - 3/4 Season, Insulated Mummy Shaped Bag - Best for Spring Summer, Camping, Trekking Dark Red Right Handed Zip - Long length (215cm)

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.

What We Like
Extreme temperature rating
Comfortable insulation
3/4 season versatility
Long length for taller users
#TOP 2

Mountain Warehouse Basecamp 200 Kids Sleeping Bag

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Blue
One Size
Mountain Warehouse Basecamp 200 Kids Sleeping Bag Cover
Mountain Warehouse Basecamp 200 Mini Sleeping Bag - 2 Season, 160 * 65cm, Insulated Kids Travel Sleep Essential - For Spring Summer, Camping & Travel Blue

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.

What We Like
Warm for summer nights
Comfortable hollow fibre insulation
Easy to pack and store
Lightweight and portable
#TOP 3

Mountain Warehouse Traveller 50 Sleeping Bag for Camping

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Regular Length
Mountain Warehouse Traveller 50 Sleeping Bag for Camping Cover
Mountain Warehouse Traveller 50 Sleeping Bag XL - Windproof, Breathable & Lighweight Mummy Shaped Bag - All Season Camping, Hiking, Trekking & Outdoors Teal Regular Length

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.

What We Like
Versatile for various conditions
Comfortable in mild temperatures
Snug fit for average users
Mummy shape maximises warmth
#TOP 4

Mountain Warehouse Summit 300 Sleeping Bag for Camping

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Mountain Warehouse Summit 300 Sleeping Bag for Camping Cover
Mountain Warehouse Summit 300 Sleeping Bag - 3/4 Season, Insulated Mummy Shaped Bag - Best for Spring Summer, Camping, Trekking Dark Red Right Handed Zip - Regular length (200cm)

The Summit 300 Sleeping Bag from Mountain Warehouse is designed for comfort and warmth during your outdoor adventures. With an extreme rating of -18°C, it can serve as a survival option, though you should ideally use it in temperatures between 4°C to -2°C for optimal comfort. This 3/4 season bag is perfect for chilly nights while camping or trekking, ensuring you stay cosy. Its hollow fibre insulation adds to the comfort, making it a great choice for spring and summer outings.

What We Like
Extreme temperature rating
Comfortable down to -2°C
Ideal for 3/4 season use
Hollow fibre insulation
Long length for taller users
#TOP 5

Mountain Warehouse Summit Mini Square Sleeping Bag

023153014001
One Size
Mountain Warehouse Summit Mini Square Sleeping Bag Cover
Mountain Warehouse Summit Mini Square Sleeping Bag - 2/3 Season, Lightweight, Inner Pocket - For Spring Summer, Camping & Trekking Cobalt One Size

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.

What We Like
Lightweight and portable
Spacious envelope shape
Hood retains body heat
Inner pocket for valuables
#TOP 6

Mountain Warehouse Extreme Lightweight Down Sleeping Bag

024685044001
One Size
Mountain Warehouse Extreme Lightweight Down Sleeping Bag Cover
Mountain Warehouse Extreme Lightweight Down Sleeping Bag - Mummy Shape, Hoodie - Ideal For Spring Summer Camping Red One Size

The Mountain Warehouse Down Sleeping Bag is ideal for warm nights and summer camping, offering comfort in temperatures around 10°C. It also performs well down to 5°C, giving you some extra warmth when the nights get a little cooler. Filled with down, it traps heat effectively, keeping you cosy throughout your sleep. This sleeping bag is perfect if you want something light and easy to carry while still staying warm on mild nights.

What We Like
Lightweight at 0.8kg
Warm down filling
Comfortable mummy shape
Suitable for 2 seasons
Hooded for extra warmth
#TOP 7

Mountain Warehouse Microlite 950 Mummy Sleeping Bag

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Mountain Warehouse Microlite 950 Mummy Sleeping Bag Cover
Mountain Warehouse Microlite 950 Sleeping Bag -17x43cm, 3 Season, Mummy Shape Camping Bag - For Spring Summer Grey Right Handed Zip - Regular length (200cm)

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.

What We Like
Great for cold weather
Comfortable for spring and autumn
Regular length for average height
Survival rating for emergencies
Buying Guide Image
Editor's Notes

During our Mountain Warehouse mummy sleeping bag research, we found 18 Mountain Warehouse mummy sleeping bag products and shortlisted 7 quality products. We collected and analyzed 9,144 customer reviews through our big data system to write the Mountain Warehouse mummy sleeping bags list. We found that most customers choose Mountain Warehouse mummy sleeping bags with an average price of £30.91.

The Mountain Warehouse mummy sleeping bags are available for purchase. The top 7 picks range in price from a low of £16.00 to a high of £89.00, find the one that fits your budget.

Written by
Luke Dobson Avatar

Luke is a runner, a climber, hiker, hunter, and a lot more. Luke Dobson is Celtic-born and has lived most of his life in Scotland. However, his sporting endeavours have taken him to several countries around Europe. He serves as a tour guide for countless companies and owns a couple of gyms and recreational centres in Scotland. Luke Dobson is proficient in 7 different languages. He maintains many sport article columns where he shares his wealth of experience in the sport industry.