3 Season Sleeping Bag: A Guide to the Best in 2023


3 season sleeping bags
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If you’re an experienced hiker, then you know that having the right gear makes a huge difference when it comes to having a successful and comfortable outdoor experience. One essential piece of equipment for any hiking trip is proper sleeping gear – and one important item within that category is your sleeping bag.

A 3 season sleeping bag in particular can be a great choice as they give added insulation during sudden temperature drops but still remain lightweight enough to pack away easily. For those looking to purchase their first 3 season sleeping bag or upgrade from an older version, this guide will cover all the bases so that you choose the perfect fit for your needs and future adventures!

What is a 3 season tent?

A 3-season tent is a type of outdoor shelter designed to be used generally in the spring, summer, and autumn. These tents are built to withstand moderate conditions including rain, wind, and light snow, but are not intended for heavy snowfall or harsh winter conditions.

They are typically lightweight, with ample mesh panels for ventilation, which makes them perfect for warmer weather. The main purpose of a 3-season tent is to keep bugs out and provide privacy rather than to withstand severe weather conditions.


A 3 season sleeping bag is an essential item for any camping or hiking trip. It is designed to keep you warm and comfortable in temperatures ranging from 0°C to 10°C, making it ideal for use in spring, summer, and autumn.

When choosing a 3 season sleeping bag, there are a few critical things to consider.

Firstly, the type of insulation used in the sleeping bag is essential. Down insulation is lightweight and compressible, making it ideal for backpackers, but it can lose its insulating properties when wet. Synthetic insulation, on the other hand, is bulkier and heavier, but it retains its insulating properties even when wet.

The weight and size of the sleeping bag are also important factors to consider, especially if you plan to carry it with you on a backpacking trip. A lightweight and compact sleeping bag will take up less space in your backpack and make it easier to carry.

Best 3 Season Sleeping Bags

As avid campers and hikers, we know the importance of a good night’s sleep in the great outdoors. That’s why we’ve scoured the market to bring you our top picks for the best 3 season sleeping bags. These bags are designed to keep you warm and comfortable in temperatures ranging from 0°C to 10°C, making them perfect for spring, summer, and autumn camping trips.

See below for details of 5 of the best 3 seasons sleeping bags on the market, but if you want to skip them all and just see our favourite then…

EDITORS CHOICE – HIGHLANDER ECHO ADULTS MUMMY SLEEPING BAG

Buying Guide

When it comes to choosing a 3 season sleeping bag, there are several factors to consider to ensure you get the best product for your needs. In this section, we will discuss the key features to look out for when making your purchase.

Temperature Rating

One of the most important factors to consider when choosing a 3 season sleeping bag is the temperature rating. This rating indicates the lowest temperature at which the bag can keep you warm. You should choose a bag with a temperature rating that is suitable for the lowest temperature you expect to encounter during your trip.

Insulation Type

The type of insulation used in the sleeping bag is another important factor to consider. There are two main types of insulation: down and synthetic.

Down insulation is lightweight and compressible, making it ideal for backpacking trips. However, it is not suitable for wet conditions as it loses its insulating properties when wet.

Synthetic insulation, on the other hand, is bulkier and heavier but retains its insulating properties even when wet.

Shape

Sleeping bags come in different shapes, including rectangular, mummy, and semi-rectangular. Mummy bags are the most popular for 3 season use as they are more thermally efficient and have less empty space to heat up. Rectangular bags are more spacious but less efficient, while semi-rectangular bags offer a balance between space and efficiency.

Weight and Packability

If you plan to carry your sleeping bag on a backpacking trip, you should consider its weight and packability. Lightweight and compressible bags are ideal for backpacking as they take up less space in your pack and are easier to carry.

Other Features

Other features to consider when choosing a 3 season sleeping bag include:

  • Hood: A hood can help keep your head warm and prevent heat loss.
  • Zipper: A two-way zipper allows for ventilation and makes it easier to get in and out of the bag.
  • Draft collar: A draft collar helps seal in warmth and prevent cold air from entering the bag.
  • Footbox: A footbox provides extra insulation for your feet and prevents them from getting cold.

By considering these factors when making your purchase, you can ensure that you get a 3 season sleeping bag that meets your needs and keeps you warm and comfortable on your next camping or backpacking trip.

Highlander Echo Adults Mummy Sleeping Bag

We highly recommend the Highlander Echo Adults Mummy Sleeping Bag for anyone looking for a reliable and warm sleeping bag for their camping trips.

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Highlander Echo Adults Mummy Sleeping Bag

  • Outer shell constructed with 260T ripstop polyester
  • Inner contains 190T polyester microfibre which is soft on the skin and breathable. Filled with a thick 400gsm 3D hollowfibre spiral insulation
  •  3 Season Sleeping Bag has an Upper Limit: of 8°C, Comfort Rating of 0°C, Lower Limit of -8°C and Extreme Temperature of -26°C
  • 3D neck prevents the heat from escaping and the cold from entering around the hood area
  • Two-way anti snag zipper making it accessible from inside or outside.

The Highlander Echo Adults Mummy Sleeping Bag is very comfortable and warm, perfect for a camping trip. The elasticated adjustable draw cords and 3D neck prevent heat from escaping, and the insulation placement helps reduce cold spots.

The sleeping bag conforms to EN13537 Temperature Standards, which means it performs well when the temperature drops below freezing. However, keep in mind that the temperature rating may not be accurate for everyone, and it’s always best to test it out before going on a trip.

Overall, we think the Highlander Echo Adults Mummy Sleeping Bag is a great investment for anyone looking for a reliable and warm sleeping bag for their camping trips.

Pros
  • The outer shell is made of 260T ripstop polyester, which makes it durable, lightweight, and water-resistant, perfect for winter months.
  • The 350gsm 3D HollowFIbre spiral insulation used to regulate the temperature and store heat is thick and provides great warmth.
  • The anti-snag zipper makes it easy to access the sleeping bag from inside or outside, and the 4-strap compression stuff sack makes it easy to transport.
Cons
  • The mummy shape may feel constricting for some people.
  • The sleeping bag is a bit bulky compared to other options on the market.
  • The temperature rating may not be accurate for everyone, as it can vary depending on individual preferences.

Forinbuy Double Sleeping Bags

If you’re looking for a comfortable and durable sleeping bag for your camping trips, the Forinbuy Double Sleeping Bag might be the right choice for you.

Forinbuy Double Sleeping Bags

  • Made of high-quality 210T polyester fibre shell, 100% cotton flannel lining, and 360GMS hollow cotton filling
  • Impressive size of 220x150cm, this waterproof 2 person sleeping bag can hold two adults
  • Temperature range is 50°F~68° F(10°C~20°C).
  • Can be divided into two separate sleeping bags as double-sided zippers on both sides.

You’ll be impressed with its quality and comfort of the Forinbuy Double Sleeping Bag. The 210T polyester fiber shell, 100% cotton flannel lining, and 360GMS hollow cotton filling make the sleeping bag soft and warm, and the double-filled technology and cell-shaped quilted design keep you warm even in extreme conditions.

The sleeping bag is also easy to clean, and the free compression bag with straps makes it convenient to store and carry. However, the sleeping bag is quite heavy, so it might not be ideal for backpacking trips, and the size might be too big for some people.

Overall, we would recommend the Forinbuy Double Sleeping Bag for camping trips, especially if you’re camping with a partner or friend. It’s comfortable, durable, and easy to clean, making it a great investment for any camping enthusiast.

Pros
  • The high-quality materials used in this sleeping bag make it soft, warm, and comfortable, allowing you to relax after a long day of hiking.
  • The waterproof and weather-resistant design keeps you warm even in extreme conditions and prevents dampness.
  • The sleeping bag is easy to clean and comes with a free compression bag with straps, making it lightweight and convenient to store and carry
Cons
  • The sleeping bag is quite heavy, weighing 8.37 pounds (3.8 kilograms), which might not be ideal for backpacking trips.
  • The size of the sleeping bag might be too big for some people, especially if you’re camping solo.
  • The sleeping bag is only suitable for 3 seasons, so it might not be warm enough for winter camping

Trespass Doze 3 Season Sleeping Bag

We highly recommend the Trespass Doze 3 Season Sleeping Bag for anyone looking for a reliable and comfortable sleeping bag for camping or hiking.

Trespass Doze 3 Season Sleeping Bag

  • 100% polyester.
  • 3 season sleeping bag.
  • Size: 230 x 85 x 55cm. Compact when packed – just 40 x 23cm.
  • 2 way zipper.
  • Shoulder baffle keeps you warm through the night.

The shoulder and zip baffles on the Trespass Doze Sleeping Bag will keep you warm and comfortable throughout the night, and the cosy ridge hood provided adds warmth and comfort. It is extremely compact when packed, and it easy to carry in backpacks.

The synthetic fibre fill material is warm enough in the mild weather, but we cannot guarantee that it will be warm enough in extreme cold conditions. The polycotton lining is comfortable, but we would prefer pure cotton for better breathability.

The two-way zip works well, but be careful not to catch it on the fabric.

Overall, we are satisfied with the Trespass Doze 3 Season Sleeping Bag and would recommend it to anyone looking for a reliable and comfortable sleeping bag for camping or hiking.

Pros
  • The shoulder and zip baffles prevent heat loss, ensuring that you stay warm and snug throughout the night.
  • The cosy ridge hood with draw cord fastening provides added warmth and comfort, making it perfect for chilly nights.
  • The compact 40 x 23 cm pack size (with four-way compression) makes it easy to pack and carry, without taking up too much space in your backpack.
Cons
  • The synthetic fibre fill material may not be as warm as down in extreme cold conditions.
  • The lining is made of polycotton, which may not be as breathable as pure cotton.
  • The two-way zip may get stuck or catch on the fabric if not handled carefully.

Marmot NanoWave 35 Mummy 3 Season sleeping bag

If you’re looking for a lightweight and compact 3 season sleeping bag that is perfect for camping and trekking, the Marmot NanoWave 35 Sleeping Bag is definitely worth considering.

Marmot NanoWave 35 3 Season sleeping bag

  • Three-season sleeping bag with anatomically optimized fit in the head and foot area guarantees better insulation and more comfort when sleeping
  • Extra zipper for additional ventilation
  • Draft collar and hood
  • 50D 100% nylon ripstop outer material is breathable and windproof
  • Temperature range from 7°C to -10°C

Take the Marmot NanoWave 35 Sleeping Bag on a camping trip and you’ll be impressed with its performance. The synthetic spiral high loft insulation keps you warm and comfortable throughout the night, while the anatomically optimized fit and extra zipper provide excellent ventilation.

The bag’s lightweight and compact design makes it easy to pack and transport, while the included compression bag helps reduce its size even further. You’ll also appreciate the thoughtful design features, such as the “feely” draw cords and dual hang loops.

Overall, we would definitely recommend the Marmot NanoWave 35 Sleeping Bag to anyone in need of a high-quality, lightweight and compact 3 season sleeping bag for camping and trekking.

Pros
  • The synthetic spiral high loft insulation provides maximum warmth and life span of the sleeping bag, making it the perfect combination of heat, comfort and low weight.
  • The anatomically optimized fit in the head and foot area guarantees better insulation and more comfort when sleeping, while the extra zipper provides additional ventilation.
  • The bag’s top portion is built for maximum loft and warmth, while the bottom portion retains a blanket-like feel for all-night comfort.
Cons
  • The temperature range of 7°C to -10°C may not be suitable for extremely cold weather conditions.
  • The sleeping bag may not be as durable as some other models on the market.
  • The price point may be higher than some budget-friendly options.

KingCamp Winter 3-4 Season Sleeping Bag

If you’re looking for a warm and comfortable sleeping bag for your camping or hiking trips, the KingCamp Sleeping Bag is a great option.

KingCamp Winter 3-4 Season Sleeping Bag

  • Three-season sleeping bag with anatomically optimized fit in the head and foot area guarantees better insulation and more comfort when sleeping
  • Extra zipper for additional ventilation
  • Draft collar and hood
  • 50D 100% nylon ripstop outer material is breathable and windproof
  • Temperature range from 7°C to -10°C

The extra large size of the KingCamp Sleeping Bag allows you to move around freely and find a comfortable sleeping position, and the insulated filling keeps you warm and cozy throughout the night. The separated zipper at the bottom is a great feature, as it allows you to regulate the temperature inside the sleeping bag and prevent your feet from getting too hot or too cold. The anti-snag zip also works well, preventing the outer shell from getting caught in the zip.

However, the sleeping bag is quite large and heavy, making it difficult to carry on a backpacking trip. Additionally, the temperature rating may not be accurate for all users, as individual preferences and body temperature can vary. Finally, while the compressed bag with straps was convenient for storage and transport, it may not be as durable as some users would like.

Overall, we would recommend the KingCamp Sleeping Bag for anyone looking for a warm and comfortable sleeping bag for their camping or hiking trips. Its extra large size, insulated filling, and unique features make it a great choice for anyone who values comfort and convenience.

Pros
  • The extra large size of the sleeping bag makes it incredibly roomy and cozy, allowing you to move around and find a comfortable sleeping position easily.
  • The insulated filling and water-resistant shell provide ultimate warmth and comfort, even in colder temperatures.
  • The separated zipper at the bottom and anti-snag zip make it easy to regulate the temperature inside the sleeping bag and prevent the outer shell from being caught in the zip.
Cons
  • The sleeping bag may be too large and heavy for backpacking trips.
  • The temperature rating may not be accurate for all users, as individual preferences and body temperature can vary.
  • The compressed bag with straps may not be as durable as some users would like.

Frequently Asked Questions

What is the best three season sleeping bag?

When it comes to selecting the best three season sleeping bag, there are a few factors to consider. Firstly, you’ll want to ensure that the sleeping bag is rated for the temperature range you’ll be camping in. Additionally, you’ll want to consider the weight and packability of the sleeping bag, as well as any features that may be important to you, such as a hood or draft collar. Some popular options for three season sleeping bags include the Vango Ultralite Pro 300 and the Rab Ascent 500.

What temperature is a 3 season sleeping bag for?

A three season sleeping bag is typically designed to keep you warm in temperatures ranging from around 0°C to 10°C. However, it’s important to note that everyone’s comfort levels are different, so you may need to adjust accordingly based on your own preferences.

Is there such thing as a 4 season sleeping bag?

Yes, there are four season sleeping bags available on the market. These sleeping bags are designed to keep you warm in much colder temperatures than a three season sleeping bag, typically down to around -10°C. Four season sleeping bags are often heavier and less packable than three season sleeping bags, but they provide greater warmth and protection in harsher conditions.

What is season 2/3 sleeping bag?

A season 2-3 sleeping bag is a sleeping bag that is designed to be used in both two and three season conditions. These sleeping bags typically have a temperature rating of around 5°C to 15°C, making them suitable for use in spring, summer, and autumn.

Conclusion – best 3 season sleeping bags

After reading these reviews of 5 of the best 3 season sleeping bags available today, we hope that this has helped you make your choice.

Our favourite overall is the Highlander Echo Adults Mummy Sleeping Bag, but if you are on budget then we would suggest going for the KingCamp XL Sleeping Bag.

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