Top 10 3 Season Sleeping Bag UK – Mummy Sleeping Bags

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1. Marmot


Marmot Trestles 30, Mummy sleeping bag, light and warm 3 seasons sleeping bag, Green Lichen/Greenland, Regular: 183 cm

Marmot #ad - Three-season sleeping bag with anatomically optimized fit in the head and foot area guarantees better insulation and more comfort when sleeping; additional ventilation thanks to an extra zipper.

This 70d 100% polyester ripstop outer material is breathable and windproof; draft collar and hood; can also be used as a cover; temperature range from 2°C to -19°C. The mummy sleeping bag with synthetic Spirafil High Loft insulation for maximum warmth and life span of the sleeping bag; the perfect combination of heat, comfort and low weight. Warm sleep bag with fluffy lining made from 100% polyester, bilateral full-length zippers; 2-way closure and pinch protection; can also be used as a cover.
BrandMarmot #ad
ManufacturerMarmot Mountain #ad
Height7.62 cm (3 Inches)
Length182.88 cm (72 Inches)
Width78.74 cm (31 Inches)
Part Number23520-4430-LZ
WarrantyNo warranty

2. Zentorno


3-4 Seasons, Washable Mummy Sleeping Bag for Adults, Ultralight and Small Pack Size, Winter Sleeping Bag Outdoor, Breathable and Water-Repellent, Zentorno® Winter Sleeping Bag up to -10 °C

Zentorno #ad - Promised! the zentorno winter sleeping bag is always well equipped and get the best sleep in any situation. No need to worry about it. Comfortable quality. Starting with the filling, completed with the zip.

Thanks to the integrated head pocket, you can build your own pillow as you want. Whether you store garments or a normal pillow in it, you decide for yourself. Even machine washing at 30 degrees is no problem. Temperatures down to -15 degrees are no longer a problem. We only use high-quality materials, because cheap is the most expensive version in the long run. With the winter sleeping bag from Zentorno you no longer have to compromise. Durable and easy to use. Shape and colour are 100% retained. A great choice for outdoor activities where you may be faced with humid conditions. Breathable and waterproof.
BrandZentorno #ad
ManufacturerZentorno #ad
Height7.62 cm (3 Inches)
Length210 cm (82.68 Inches)
Width75 cm (29.53 Inches)

3. Kelty


Kelty Cosmic 20 Degree 550 Down Fill Sleeping Bag for 3 Season Camping, Large Footbox, Compression Stuff Sack Regular, Premium Thermal Efficiency, Soft to Touch

Kelty #ad - Trapezoids, man: turns out this funky shape is ideal for helping sleeping bags retain heat. First time campers and old timers rejoice. Fan favorite and campsite staple with improved Thermal Efficiency. Headquarters in Colorado, useful, USA.

Since 1952 kelty has designed and manufactured quality, and durable goods for the everyman and woman seeking to enjoy life outside. Dual zippers: two sliding, locking zippers with anti-snag draft tube - unzip from the bottom to stick a foot out and self-regulate heat while enjoying mummy-bag comfort. Kelty quality: good craftsmanship speaks for itself. Zippered internal stash pocket for cell phone or headlamp. Get down: light, warm to boot; what’s not to love about down Fill? The Cosmic features 550 fill Kelty treated DriDown insulation, compressible, dry, use, with sustainably sourced materials that are easy to pack, and keep your buns toasty.

Trapezoidal baffle construction improves our best selling Cosmic sleeping bag for 2021. Entry level veteran: priced even lower for 2021, the cosmic is more budget friendly than ever while retaining it’s well deserved reputation for a do-it-all backpacker’s slumber companion.
BrandKelty #ad
ManufacturerKelty #ad
Height7.62 cm (3 Inches)
Length20.07 cm (7.9 Inches)
Weight0.42 kg (0.91 Pounds)
Width19.05 cm (7.5 Inches)
Part Number35413721RR



Trekking and Travel, NORDMUT® Sleeping Bag 3 Seasons 300 GSM Ultralight and Compact | Outdoor Sleeping Bag | Sleeping Bag Can Be Combined | Mummy Sleeping Bag 1600g Ideal for Outdoor, Camping

NORDMUT #ad - Comfortable: the innovative design and the high-quality 400T nylon make the camping sleeping bag particularly light and pleasantly soft on the skin. Robust – the high-quality material is very breathable and durable, so that maximum comfort and long-lasting enjoyment of the outdoor sleeping bag are guaranteed.

Compact – the mummy sleeping bag can be compressed to an amazing 20 x 40 cm with a weight of 1600 g in the pack bag despite a generous lying surface of 216 x 80 cm - for maximum space saving. Premium zip – the 3-season sleeping bag is equipped with high-quality two-way YKK zips on both sides – for easy entry and maximum durability.

What are you waiting for? The water-repellent coating provides additional protection. All-round – thanks to the compact dimensions and low weight, festival, travelling, trekking, the camping sleeping bag is a perfect companion for all outdoor activities - whether camping, fishing or backpacking. The temperature for fluffy warm nights is around 6° - with a filling of 300 GSM. A real all-rounder! .
BrandNORDMUT #ad
ManufacturerNORDMUT #ad
Warranty30 Days



Side Sleeper Friendly | XXL Big and Tall Winter Cold Weather Camping Sleeping Bag w. Compression Sack Alpine Blue, Azitrek 0 Degree Sleeping Bags for Adult and Youth | Mummy Peanut Shape

AZITREK #ad - Grab and go! jam-free zipper & machine washable snag-free zipping and unzipping. 10 inch. Machine wash cold and tumble dry in low temp. Packed easily into the compression sack included in small. Big and Tall. Extra-long and wide, paired with spacious square feet-box, suitable for all size campers - adults, kids, youth, even big n tall.

Side sleepers comfort: side sleeping friendly in peanut-shape mummy style. Durable, secure you a warm, waterproof & cozy crafted with durability, and spacious feet-box, cozy, relaxing, accommodated with oversized peanut mummy shape interior, the water-resistant outer layer repels moisture to keep you dry. Extreme warmth tech trademarked dually double-layer thermal insulation, soft surrounding face cuff design, U-comfort draft collar, ensuring warmth for all-season camping, all features keep heat from escaping, draft tube, hiking, backpacking and trekking in cold weather.

The innovative thermal-insulation features, and comfortable night’s sleep in any 4 seasons outdoor camp adventure. Oversized yet packed down compact: 906 x 37. 5inch; ideal for campers up to 6 feet.
BrandAZITREK #ad
ManufacturerAZITREK #ad
Height7.62 cm (3 Inches)
Length230.12 cm (90.6 Inches)
Width95.25 cm (37.5 Inches)
Part NumberAZ-OWSB

6. Silentnight


165 x 82cm, Silentnight Kids Sleeping Bag, Girls Boys 3 Season Mummy Sleeping Bag Ideal for Spring and Summer with Soft Touch Warm Cosy Fabric and Fibres, Machine Washable, Rainbow

Silentnight #ad - Soft and snuggly: made with soft touch fabric and filled with snuggly Softfill™ fibres for ultimate comfort. Machine washable: Machine washable to keep your sleeping bag feeling fresh and clean.

Cosy comfort: cosy and comfortable for a great night's sleep indoors or under the stars, from the UK's #1 sleep superbrand. Ideal for spring and summer trips: The 3 season sleeping bag is ideal for spring and summer camping trips. Playful prints: our fun, colourful prints will only add to the adventure! Perfect for nights around the campfire or sleepovers at a friend's house. The pod shaped sleeping bag is perfect for little wrigglers to get a great night's sleep.
BrandSilentnight #ad
ManufacturerSilentnight #ad
Length165 cm (64.96 Inches)
Part Number567343GE
Warranty2 year manufacturer

7. Berghaus


Camping Equipment, Ideal for Festivals and Family Camping Trips, Berghaus Indulge Double Sleeping Bag with Hood and Built-in Pillow, One Size, 2-3 Season Sleeping Bag for 2 People, Blue

Berghaus #ad - Max user height: 220cm/7ft2. Ideal to be used with a double airbed or sleeping mat. 2- 3 season - ideal for camping and festivals, this super warm and cosy season sleeping bag for 2 from Berghaus has a comfort temperature rating of 3°C and will keep you comfortable on spring and summer nights.

Limit: -2°C. Specifications - 220l x 145w cm. Spacious - a super-comfortable and spacious double sleeping bag designed for comfortable camping nights for couples and those who like extra room to spread out on their camp bed. Recommended temperature; Comfort rating: 3°C. Packed dimensions: 53l x 42w x 30h cm. Extra features - the top and bottom can be split to make two single bags, there's an inner security pocket for securing valuable camping essentials and it comes complete with a carry bag for convenient transportation and storage.

Comfortable - it has 100% cotton flannel lining which is soft, warm and comfortable and a 230T microfibre polyester outer which is lightweight and waterproof. Packed weight: 4. 8kg.
BrandBerghaus #ad
ManufacturerBerghaus #ad
Height7.62 cm (3 Inches)
Length220 cm (86.61 Inches)
Width145 cm (57.09 Inches)

8. TETON Sports


TETON Sports Celsius XL -25F Sleeping Bag; Cold Weather Sleeping Bag; Great for Family Camping; Free Compression Sack

TETON Sports #ad - Say no to rolling up your sleeping bag ever again. The half-circle mummy-style hood keeps you warm and your pillow clean. Starting at the bottom, stuff the bag in, then tighten the heavy-duty straps for ultimate compressibility.

Innovative fiber fill; double-layer construction and draft tubes work together to keep the cold out and the warmth in. Sleep comfortably: you'll forget you're camping with these comfortable sleeping bags! With a soft poly-flannel lining and plenty of room to spread out. Stay warm: rain or shine, you'll be warm and rested in this sleeping bag. Easy to pack: teton provides a durable compression sack for stuffing your sleeping bag into.

Tips to stay warm fluff your sleeping bag and use an insulated camp pad to sleep warmer; also wear a stocking cap to avoid heat loss, stay hydrated, and wear socks. 5 star comfort on all your outdoor adventures. Teton sports promise: reach out to our amazing product support team if you have any questions or concerns; YOU CAN COUNT ON US to get you taken care of and back OUTDOORS.
BrandTETON Sports #ad
ManufacturerTETON Sports #ad
Height10.16 cm (4 Inches)
Length228.6 cm (90 Inches)
Width91.44 cm (36 Inches)
Part Number139L
WarrantyLimited Lifetime Warranty - TETON Sports strives to manufacture the best possible products for our customers. Our limited lifetime warranty covers products against defects in materials or workmanship. This warranty is cheerfully extended to the original owner only and excludes normal wear and tear (e.g., zippers that wear out after extended use) or misuse. Please follow care instructions. If, after inspection, a product is determined by us to be defective in workmanship or materials, we will repair or replace it at our option, at no cost to you (the original owner). Contact customer service for assistance by visiting us online at to obtain a return authorization number. Shipping fees may apply. For international warranty claims (outside the United States), shipping and duty fees are the responsibility of the consumer.



HiZYNICE Sleeping Bags for Adults Cold Weather Zero Degree Extra Large Sleeping Bag Adult Big and Tall Winter Camping XXL,Navy Blue Right Zip,90" x 39"

HiZYNICE #ad - 7 in, and people who like side sleeping or roomy. Warm: the extreme temperature is 0 ℉, the limit temperature is 15 ℉, and the comfort temperature is 30 ℉. A draft tube along the zipper keeps body heat from escaping.

Machine washable: wash in cold water with mild detergent, on the gentle cycle. Please put the flannel surface in the washing machine to protect the waterproof coating of the shell. Features: you can zipping together two bag(left and right)to be a double sleeping bag, this sleepig bag can also fully opend to be a mat. Big & tall: 90 x 39 in. Ideal for campers up to 6 ft. Cozy: soft 100% cotton flannel lining;anti-snag zippers can unzips inside or outside, and unzips at the top or bottom for easy access and ventilation, perfect for camping in 3 seasons.
BrandHiZYNICE #ad
ManufacturerHiZYNICE #ad
Height0.03 cm (0.01 Inches)
Length228.6 cm (90 Inches)
Weight3.18 kg (7 Pounds)
Width99.06 cm (39 Inches)
Part Number2021CSB9040

10. Mountain Warehouse


2 Season, For Spring Summer, 160 * 65cm, Camping & Travel Bright Pink, Mountain Warehouse Basecamp 200 Mini Sleeping Bag, Insulated Kids Travel Sleep Essential

Mountain Warehouse #ad - When packed away it will not lose its shape. Insulation - Hollow fibre stuffing, comfortable and cosy. Easy to pack - a 'crushable' design. Dimensions - 160cm x 65cm, weight – 700g. Carry bag - ideal for easy storage and travel. 2 season - warm nights, summer, indoor use.
BrandMountain Warehouse #ad
ManufacturerMountain Warehouse #ad
Height0.01 cm (0 Inches)
Length160 cm (62.99 Inches)
Width65 cm (25.59 Inches)
Part Number23154007001_SML