10 Best 3-Season Lightweight Sleeping Bags with Down Insulation

My favorite time to embark on any journey, be it a hike or normal travelling, is either during spring or autumn seasons.

The nature is at its best during these times and the weather is just perfect.

You May Also Like:

• Best Backpacking Sleeping Bags
• Best 0 Degree Sleeping Bags
• Best 20 Degree Sleeping Bags

I do not enjoy hiking during the cold season for obvious reasons, even though I have hiked numerous times during the winters.

Needless to say, during my lifetime, I have used many 3-season sleeping bags while hiking during the spring, summer and autumn.

So, today we will be  discussing about some of my favorite 3-season sleeping bags; and not just 3-season sleeping bags but 3-season lightweight sleeping bags with down insulation, because I do not want my readers to carry extra burden on their shoulders ( I should start making better puns, seriously) by searching for lightweight sleeping bags separately.

Also, if you haven’t checked out my previous two articles on “The 10 Best 0 Degree Sleeping Bags” and “The 10 Best 20 Degree Sleeping Bags”, make sure to check them out as well.

The 10 Best 3-Season Lightweight Sleeping Bags with Down Insulation in 2019

10 Best 3-Season Lightweight Sleeping Bags with Down Insulation Reviews

With so many brands coming up with their own 3-season sleeping bags, it may be quite confusing to choose the ideal sleeping bag for you. So, to cut down on your time otherwise spent on fishing through the countless 3-Season sleeping bags, I have prepared the followed list which comprises of the top 10 3-Season lightweight down sleeping bags, all of which I have personally tested and reviewed for you all.

1. Outdoor Vitals Summit 20F Down Sleeping Bag

The first 3-Season lightweight sleeping bag in our list is the Outdoor Vitals Summit 20F Down Sleeping Bag. This is a mummy shaped sleeping bag with 800 fill power duck down insulation.

The Outdoor Vitals Summit 20F Down Sleeping Bag is hands down one of my absolute favorites. This sleeping bag is filled with wonders which is sure to make you fall in love with it after the very first try.

For starters, the Outdoor Vitals Summit 20F Down Sleeping Bag is a very lightweight sleeping bag and hence makes up for an excellent choice as a backpacking sleeping bag.

The regular version of this beauty weighs only 2 pounds and 6 ounces. The credit of the sleeping bag being lightweight goes to its light 20D rip-stop fabric.

Another great feature in the Outdoor Vitals Summit 20F Down Sleeping Bag is the even distribution of the heat inside this sleeping bag because of the grid baffle design.

When I first got this sleeping bag, I have to be quite honest, I was very skeptical about the sleeping bag not being warm enough because of the light material; but did this sleeping bag amaze me?

It is hands down one of the warmest and coziest sleeping bag for autumn, spring and summer. I have never experienced any cold spots with this sleeping bag; it is not drafty at all.

The Outdoor Vitals Summit 20F Down Sleeping Bag’s internal fabric is 320T rip-stop. This mummy shaped sleeping bag has dimensions of 75×31 inches for a regular size- which will fit people between height 5 feet 6 inches to 6 feet.

The Outdoor Vitals Summit 20F Down Sleeping Bag also compresses very easily and packs down to a small size. This sleeping bag comes along with a compression bag.

You are sure to remain warm and dry inside the Outdoor Vitals Summit 20F Down Sleeping Bag, thanks to the VitalDry DWR coating of this sleeping bag which helps to repel water.

The materials of this sleeping bag are all tough and durable, including the heavy duty YKK zippers.

Last but not the least, the fabric of the Outdoor Vitals Summit 20F Down Sleeping Bag is extremely soft. Sleeping inside this sleeping bags feels like being hugged by clouds- it is just that amazing,

The Outdoor Vitals Summit 20F Down Sleeping Bag is a remarkable 3-Season sleeping bag which you do not want to miss. I have zero complaints with this beauty.

Features I like:

2. Nemo Sonic 15F Down Sleeping Bag

Another amazing 3-Season lightweight sleeping bag is the Nemo Sonic 15F Down Sleeping Bag. This is a mummy shaped sleeping bag made from nylon.

The Nemo Sonic 15F Down Sleeping Bag weighs 2 pounds and 11 ounces. Its dimensions is 72×30.5 inches.

The insulation of the sleeping bag is 850 fill power down insulation. The Thermo Gills present in this sleeping bag not only help to regulate the warmth of the sleeping bag but also prevent cold spots and draftiness.

The Nemo Sonic 15F Down Sleeping Bag has a snug fit. It is a lightweight sleeping bag made with high quality materials.

The 20-denier rip-stop nylon of the Nemo Sonic 15F Down Sleeping Bag is water resistant.

You get a stuff sack along with the sleeping bag.

Moving over to the negative aspects, I found two major shortcomings with the Nemo Sonic 15F Down Sleeping Bag.

Firstly, even though the temperature rating of this sleeping bag is 15 degrees Fahrenheit, when I used it in 35 degrees Fahrenheit, I did feel a little bit cold, though not totally chilly. So, I would recommend you to use this sleeping bag above 40 degrees Fahrenheit.

Secondly, the price of the sleeping bag is a little on the high side.

Features I like:

3. Kelty Coromell 40 Degree Down Sleeping Bag

The Kelty Coromell 40 Degree Down Sleeping Bag has a very comfortable shape of rectangle which tapers towards the end. The reason I love this shape is because the tapering end helps to trap heat better in the feet area, and my feet are one of my body parts which get the coldest.

The Kelty Coromell 40 Degree Down Sleeping Bag weighs 2 pounds and 1 ounce. Its dimensions is 75×36 inches for the regular size, which can fit someone up to 6 feet of height.

This sleeping bag has a full length zipper which can be completely opened if you want to use the sleeping bag as a blanket.

The Kelty Coromell 40 Degree Down Sleeping Bag has 550 fill power down insulation. This sleeping bag is easy to compress.

A warm and comfortable sleeping bag, the Kelty Coromell 40 Degree Down Sleeping Bag does its work well.

However, given the somewhat high price of this sleeping bag compared to most of the 3-Season sleeping bags in this list, I was expecting the sleeping bag to have some more features.

Nevertheless, the Kelty Coromell 40 Degree Down Sleeping Bag is a good quality sleeping bag for the summer, spring and autumn.

Features I like:

4. Hike & Byke Shavano 32F Ultralight Sleeping Bag

The next 3-Season lightweight down sleeping bag in our list is the Hike & Byke Shavano 32F Ultralight Sleeping Bag. It is a mummy shaped duck down sleeping bag.

The duck down insulation of this sleeping bag has made it ultralight and as a result the Shavano 32F weighs only 2.09 pounds.

The Hike & Byke Shavano 32F Ultralight Sleeping Bag is waterproof in nature thanks to the water repellent 400T 20D nylon fabric of this sleeping bag.

As the name suggests, the temperature rating of the Hike & Byke Shavano 32F Ultralight Sleeping Bag is 32 degrees Fahrenheit. This sleeping bag is spacious with 83×32 inches dimensions.

The regular size version of this sleeping bag will easily fit someone up to 6 feet 1 inch of height.

The Hike & Byke Shavano 32F Ultralight Sleeping Bag is great for people with wide shoulders. It also has a large foot box to rest your feet comfortably.

The horizontal baffles have enhanced the warmth of the sleeping bag immensely. The warmth-to-weight ratio of this sleeping bag is excellent.

The Hike & Byke Shavano 32F Ultralight Sleeping Bag is not only lightweight but also compresses easily into a compact size; it can be carried around in the compression sack which comes along with this sleeping bag.

This high quality sleeping bag feels great to the skin. The soft material of the sleeping bag does not stick or irritate your skin at all.

Another great feature of the Hike & Byke Shavano 32F Ultralight Sleeping Bag is that you can use this as a quilt too.

Features I like:

5. Hyke & Byke Quandary 15 Degree Down Sleeping Bag

Another great 3-Season sleeping bag from Hyke & Byke is their Quandary 15 Down Sleeping Bag. This is also a mummy shaped sleeping bag with duck down insulation.

The Hyke & Byke Quandary 15 Degree Down Sleeping Bag weighs 3.15 pounds and is heavier than the Shavano 32F. Having said that, it is still light enough to carry around with ease in its compression sack.

The Hyke & Byke Quandary 15 Degree Down Sleeping Bag’s dimensions is 83×32 inches. This spacious bag, similar to its sibling, is fit for people with wide shoulders.

The regular version of this sleeping bag will fit someone with height up to 6 feet 1 inch.

Similar to the Shavano 32F, the Quandary 15 Degree Sleeping Bag too is equipped with large foot box and horizontal baffles.

The Hyke & Byke Quandary 15 Degree Down Sleeping Bag is a warm and comfortable sleeping bag. This 15 degrees Fahrenheit sleeping bag is suitable to be used when the temperature is above 20 and below 40 degrees Fahrenheit.

The fabric, 400T 20D rip-stop nylon, is water repellent. It feels soft and is gentle to the skin.

The only complaint I have with this sleeping bag is that even though the bag itself feels durable, the same cannot be said for the zippers. The zippers of the sleeping bag I was trying looked as if they would break at any given moment despite me being gentle with them.

Apart from this shortcoming, the Hyke & Byke Quandary 15 Degree Down Sleeping Bag is a great value sleeping bag.

Features I like:

6. Thermodown 15 Degree Down Sleeping Bag

The Thermodown 15 Degree Down Sleeping Bag by Paria Outdoor Products is a mummy shaped 3-Season sleeping bag made with 20D rip-stop nylon fabrics.

This sleeping bag weighs 2 pounds and 14 ounces. Its regular size has dimensions of 80×31 inches and will fit someone up to 6 feet of height.

The Thermodown 15 Degree Down Sleeping Bag has 28 ounces of high loft 600 fill power down. This sleeping bag compresses to a small size for easy portability.

The baffled construction and draft collars in the Thermodown 15 Degree Down Sleeping Bag have made it very warm. I slept in light clothing and was warm even at 30 degrees Fahrenheit inside this sleeping bag.

The Thermodown 15 Degree Down Sleeping Bag looks durable and of high quality. The zippers do not snag. There are two-way zippers for more flexibility.

The trapezoidal foot-box has extra insulation, which is such a great feature for people who feel extra cold in their feet while sleeping (ME!).

The material of the Thermodown 15 Degree Down Sleeping Bag feels very soft. This sleeping bag is very comfortable.

The Thermodown 15 Degree Down Sleeping Bag makes up for a great backpacking sleeping bag for the autumn, spring and summer. A storage bag and a stuff sack come along with this product.

Trust me when I say that this beauty is worth each penny you can muster on it!

Features I like:

7. Outdoor Vitals Explorer 25F Down Sleeping Bag

The Outdoor Vitals Explorer 25F Down Sleeping Bag is rectangular in shape. It weighs 3.1 pounds. The dimensions of the sleeping bag is 86×31.5 inches which will fit people up to 6 feet 6 inches of height.

The 20D rip-stop shell fabric of the sleeping bag is robust. It is coated with VitalDry DWR coating which repels water, hence keeping you dry all the time.

The Outdoor Vitals Explorer 25F Down Sleeping Bag also provides you with optimum warmth. The horizontal baffles prevent cold spots.

This sleeping bag is easy to compress. It comes with a compression bag for compact carriage.

The Outdoor Vitals Explorer 25F Down Sleeping Bag is warm and yet spacious. You get enough space to sleep cozily, without having to sacrifice on the warmth provided- a win-win situation if you ask me.

This sleeping bag is, not to mention, also very comfortable.

Another great feature present in the Outdoor Vitals Explorer 25F Down Sleeping Bag is that you can zip two sleeping bags together. One of the sleeping bags should have zipper on the right side and the other on the left side for you to be able to zip them together.

The Outdoor Vitals Explorer 25F Down Sleeping Bag has 750 fill power duck down insulation. This sleeping bag is very easy to carry around.

Talking about the downsides, I kept having problems with the zipper in the Outdoor Vitals Explorer 25F Down Sleeping Bag I was trying. So, I do think the zippers can be bettered. But the rest of the sleeping bag is a great asset to own.

Features I like:

8. Geertop Lightweight Comfort Down Sleeping Bag

The Geertop Lightweight Comfort Down Sleeping Bag is an ultra-lightweight rectangular sleeping bag with dimensions of 75×28 inches. It weighs 1.8 pounds.

This sleeping bag has duck down insulation. The nylon shell of the sleeping bag is water resistant. The lining is of polyester.

The Geertop Lightweight Comfort Down Sleeping Bag can be zipped completely open and used as a blanket as per your convenience.

The fabric of the sleeping bag is extremely breathable. It is skin friendly and soft as well.

The Geertop Lightweight Comfort Down Sleeping Bag is comfortable and warm. It can be packed down to a very compact size. This sleeping bag is one of the best backpacking sleeping bags for autumn, spring or summer.

The Geertop Lightweight Comfort Down Sleeping Bag is of a high quality. The price of the sleeping bag is very low as well.

Features I like:

9. Sierra Designs DriDown Backcountry Bed 800-Fill Sleeping Bag

The Sierra Designs DriDown Backcountry Bed 800-Fill 3-Season Sleeping Bag has a unique mummy shape design with a comforter. It has 800 fill DriDown insulation and is made with 20D nylon rip-stop fabric.

This sleeping bag weighs 2 pounds 10 ounces. The dimensions is 80×30.5 for the regular size which can fit people up to 6 feet height.

The sleeping bag is high quality. It is lightweight, warm, comfortable and also spacious.

The integrated comforter is versatile as you can wrap it around when the temperature falls and just tuck it away if it is too warm.

I was quite skeptical that the quilt would not stay in place and as a result the sleeping bag would get drafty. But to my surprise, once I tucked the quilt in, it did not move the whole time and I slept warmly and cozily throughout the night.

The Sierra Designs DriDown Backcountry Bed 800-Fill 3-Season Sleeping Bag can be compressed to a very small size and put inside the stuff sack which comes along with it. It is also equipped with a sleeping pad sleeve.

The downside to the Backcountry Bed 800-Fill is that it is quite expensive compared to the other sleeping bags in this list.

Features I like:

10. AEGISMAX Outdoor Ultralight Down Sleeping Bag

The last sleeping bag in our list is the AEGISMAX Outdoor Ultralight Down Sleeping Bag. It has 800 fill power. The temperature rating on this sleeping bag is 36 degrees Fahrenheit approximately.

The AEGISMAX Outdoor Ultralight Down Sleeping Bag weighs 1.54 pounds. It is a mummy shaped sleeping bag made with iFlex 5500 20D nylon fabric which is waterproof.

The AEGISMAX Outdoor Ultralight Down Sleeping Bag compresses down to a very compact size. This sleeping bag is so lightweight that I did not even feel as if I was carrying a sleeping bag on my back.

The dimensions of the sleeping bag is 79×34 inches. This sleeping bag is equipped with sewn through baffles.

The AEGISMAX Outdoor Ultralight Down Sleeping Bag has a snug fit. The materials of the sleeping bag are very soft to the skin.

I felt extremely warm and comfortable in this sleeping bag. I love it and would recommend it to everyone.

Features I like:

Comparison Table Best 3-Season Lightweight Sleeping Bags with Down Insulation

Why are 3-Season Sleeping Bags Important?

3-season sleeping bags, as the name suggests, work for three seasons- spring, summer and autumn.

Even though they have been mostly designed to be used during the autumn and spring seasons, you can use them for hikes in cold mountainous areas during the summer season as well.

It is no rocket science figuring out why sleeping bags are important. They are used to provide us with warmth and comfort as we sleep or rest in them.

Sleeping bags act as a barrier between the ground and you, thus preventing you from sleeping on the cold and hard ground, and providing you with the comfort of a soft and fluffy bag.

When you rest well, your body gets energized promptly for the journey ahead. And I do not think it is necessary to state just how important sleep is while hiking. And sleeping bags let you have just that- a good night’s sleep!

Sleeping bags also protect you from insects. If you lay your hands on a weather resistant or waterproof sleeping bag, just the better; that way you will be safe from the harsh climatic conditions too, and will also be able to hike in all kinds of weather.

Sleeping bags truly are the gifts of God, allowing us to get the required rest anytime and anywhere we desire. You just have to position the sleeping bag and you are good.

Sleeping bags have great values. Nowadays, there are so many varieties of these available in the market that you get to choose between so many sleeping bags with different features.

Moreover, they do not cost much. There are great quality sleeping bags available for a very low price as well.

With good care and maintenance, a good sleeping bag will last you many years.

Sleeping bags are a must necessity for all avid hikers, and I cannot stress this point enough.

How to Choose 3-Season Sleeping Bags?

Purchasing a sleeping bag is a conscious decision which needs to be made with utmost care because you do not want to be stuck with a sleeping bag which does no good. Having said that, choosing a good sleeping bag is not very difficult. For choosing a 3-Season sleeping bag, refer to the following guidelines and there should be no issue.

Temperature Rating

The temperature rating of 3-Season sleeping bags should range between 10 degrees Fahrenheit to 40 degrees Fahrenheit. When used by men, these sleeping bags can be comfortably used when the temperature is between 20 degrees Fahrenheit to 50 degrees Fahrenheit. Similarly, women can comfortably use such sleeping bags when the temperature is between 25 degrees Fahrenheit to 55 degrees Fahrenheit. This is because women generally require 5 to 10 degrees more temperature rating in a sleeping bag compared to men.

Weight

Down insulation sleeping bags are lighter compared to synthetic sleeping bags. And in this article, we will be talking about down insulation sleeping bags only. Their weight may start at anywhere from below 1 pound to up to 5 pounds in general. Choose the sleeping bag whose weight you will be able to carry around without getting tired easily.

Warmth

Providing the required warmth is one of the key functions of a sleeping bag. Warmth is determined by various factors such as the temperature rating, the space of the sleeping bag, the insulation type and the shape. You want a sleeping bag which has the required space for you to move around while sleeping but not so much as to leave huge spaces which will make the sleeping bag drafty. Snug fitting sleeping bags trap heat better than the loose fitting ones. Also, baffles and draft tubes help to prevent the heat from inside the bag from escaping out and the outside cold air from seeping in the sleeping bag. Talking about the relation between the shape of the sleeping bag and the warmth provided, mummy shaped sleeping bags are warmer compared to rectangle sleeping bags.

Comfort

Comfort is a matter of key in any sleeping bag. No one wants to spend their night tossing and turning trying to find a comfortable sleeping position. So, the sleeping bag you purchase should be comfortable. It should have the required space for you to sleep in a relaxing position. The fabric of the sleeping bag must not irritate your skin. It should be soft and gentle. It is an added benefit if the sleeping bag has foot box for resting your feet comfortably.

Size

You want to choose the sleeping bag which matches with your body structure. It should be as per your height. Most of the sleeping bags come in three different sizes of small, regular and large. Some sleeping bags are made for the slim body structures, such as the ECOOPRO Warm Weather Sleeping Bag, where as some fit the wider frame people, such as the Shavano 32F and the Quandary 15 Degree sleeping bags from Hyke & Byke. You want to choose the sleeping bag which complements your physique.

Other Accessories

You may also want to check whether the sleeping bag has extra features or not. Some of the other accessories present in a sleeping bag may be pockets, sleeping pads, two-way zippers, hoods, compression sacks and so on.

The Best Pick

My favorite 3-Season lightweight sleeping bag with down insulation from the above list is the Outdoor Vitals Summit 20F Down Sleeping Bag.

The Outdoor Vitals Summit 20F Down Sleeping Bag is just so amazing and full of great features that you cannot help but be glad that you found this beauty.

The Outdoor Vitals Summit 20F Down Sleeping Bag will become your go to sleeping bag in no time.

This sleeping bag has it all- it is lightweight, comfortable, warm, durable, compact and soft.

The price range of the sleeping bag is fair given the wonder that this sleeping bag is.

I have absolutely fallen in love with the Outdoor Vitals Summit 20F Down Sleeping Bag since the first time I ever used it, and I am sure you will too once you lay on your hands on this sleeping bag.

Do tell me in the comment section below which 3-Season sleeping bag you love the most.

If you have any queries, you may leave them in the comments too.

And I will see you next time with another article on another hiking gear.

Happy hiking!