Best 3-Season Sleeping Bags (2022) UK

Last update by Jasper

Be it the confines of your room or a starry sky for a ceiling, a good night’s sleep is a must. In fact, a refreshing sleep is more important in the wilderness when you are away from other materialist comforts.

That said, a good quality sleeping bag should be an indispensable part of your camping arsenal. There are plenty of sleeping bags to choose from, however, not all sleeping bags are alike. Basically, they are classified according to the season they are best suited for.

You can find one season, 2 seasons, 3 seasons and 4 seasons sleeping bags out there. Today, we are setting our sights on the reliable 3 season sleeping bags.

A 3 season sleeping bag can be defined as a sleeping bag that is adept at coping with three seasons: summer, spring, and autumn. The temperature rating for this sleeping bag is 0 degree onwards. A 3 season sleeping bag keeps you warm on chilly nights but doesn’t become too hot on milder nights.

If you are on the lookout for this kind of bag, you came to the right place. We searched the market for the best 3 season sleeping bags that can deliver the best features outdoor enthusiasts are looking for. Read on to find out about these recommended products.

  • Best buy - Mountain Warehouse Everest Down Extreme Sleeping Bag
  • Best for 2 persons - Andes Alma 400 Double Sleeping Bag
  • Most portable - Vango Wilderness Sleeping Bag
  • Most affordable - KeenFlex Mummy Sleeping Bag
  • Best for tall people - Active Era Professional 300 Mummy Sleeping Bag
Mountain Warehouse Everest Down Extreme Sleeping Bag Check latest prize

Stay warm and cosy in the coldest of temperatures with the Mountain Warehouse’s Everest sleeping bag. It is designed to withstand temperatures ranging from -3C to -9C. I can even protect you and keep you relatively comfortable even when temperatures get as low as -28C. There is no chance of air pockets forming because this mummy bag fits you snugly and keeps you warm even in snowy mountains.

Despite its cosy features, it is a lightweight sleeping bag. It comes with a hoodie to protect your head from the cold.


  • Lightweight yet very protective
  • Good insulation that keeps you warm even in snowy climates
  • Becomes really small and compact once folded.
  • Customers said it really is warm. It can even be used indoors as a snuggle blanket when temperatures drop.


  • The fabric gets stuck in the zip while unzipping
  • Once wet, the bag becomes ineffective and unusable
  • Some said it can get constraining around the leg area.
  • It is more expensive than other 3 season sleeping bags out there.
Andes Alma 400 Double Sleeping Bag Check latest prize

Now you need not be lonely again because the Andes Alma 400 3-4 Season Double Camping Sleeping Bag has ample space for you and your companion. Lightweight, heat retaining and suitable for 3 -4 seasons, this sleeping bag is an ideal companion for camping, trekking, and sleepovers.

It boasts of high-quality materials. With its 400GSM hollow fibre filling, it ensures users can feel comfortable even while sleeping on hard ground. It comes with double zips that go around the 3 sides for easier access.


  • The bag is large and spacious, great for 2 people.
  • The presence of internal storage pockets for valuables.
  • The inclusion of a compression bag to store the sleeping bag.
  • Comfortable, thanks to its filling.
  • It is a waterproof camping bag.
  • The price is affordable.


  • It is bulky even when rolled up
  • Not suitable for hiking and cyclists
  • The inner lining has a plastic feel, according to some.
Vango Wilderness Sleeping Bag Check latest prize

The Vango Wilderness 350 is a splendid union of affordable quality microfiber fabric with a design that is practical and useful. Comfortable and stylish, the Vango retains warmth and the temperature ranges between +2°C to +20°C.

The insulated shoulders coupled with zip baffles effortlessly deliver warmth and comfort to users. It also comes in different color choices so if you are concerned about aesthetics, this should be a good choice.


  • This delivers comfort even during colder days.
  • It has plenty of room to move around. It doesn’t feel constricting. Even restless sleepers can feel comfortable in here.
  • It folds and packs away with ease.
  • It has excellent waterproof functions. It stays dry inside.
  • It is a more affordable 3 season sleeping bag.


  • Might not be ideal for extremely cold weather
KeenFlex Mummy Sleeping Bag Check latest prize

Don’t get stuck in cold weather, shivering because your sleeping bag provides inadequate warmth. Get this one instead that boasts of good weather-proof materials that can protect you from harsh environments. Ideally, use this for temperatures -5C to +15C.

It is ergonomic to use as the baffles found at the shoulder and neck provide comfort. The zippers also have anti-snag features, great for seamlessly getting in and out of the sleeping bag.


  • This is another affordable 3 season sleeping bag you should get.
  • It keeps you comfortable even in moderately cold temperatures.
  • The design is ergonomic. You can unzip it with ease and not worry about snagging.
  • The materials are high-quality.
  • It folds and rolls easily, thanks to its compression bag.
  • There are pockets inside to keep your valuables such as phones.
  • It is backed by a satisfaction guarantee.


  • Might not be for bigger people
Active Era Professional 300 Mummy Sleeping Bag Check latest prize

With its 300GSM of filling, you surely will feel comfortable in this sleeping bag even when exposed to colder temperatures. Its comfort temperature is at +10 degrees Celsius to 0 degrees Celsius while extreme temperature goes as low as -10 degrees Celsius.

It is a water-resistant sleeping bag that will keep you warm and dry even when it is pouring outside. There is a mummy hood with a drawstring to protect your hand. The weight is just right and shouldn’t be cumbersome to bring.


  • Can protect you from the cold. It’s very warm and cozy to use.
  • It is surprisingly lightweight. You can pack it away with no issues.
  • There is an internal pouch that you can use to store valuables.
  • It features a double zipper system that is great for insulation.
  • It is one of the most affordable 3 season sleeping bags out there


  • Some said the pouch that it came in was small and flimsy.
By: Jasper

Jasper is a die hard outdoor fanatic. He loves to canoe, hike and bike.Every year he goes off grid for almost 2 weeks in Sweden.

He loves to hike in his home country, The Netherlands. Goes camping whenever he can.