There are a few great reasons to get a sleeping bag liner. They can offer great comfort, additional warmth, or they can simply be a way to protect your sleeping bag.
Whatever your reason for wanting one, you want to get the best sleeping bag liner for your needs. With our best sleeping bag liners review, we'll let you do just that. Once you've finished reading, you’ll have all the information you need for your next camping adventure.
Silk & polyester
With a sleeping bag liner, you need to decide whether you want it to simply give you more comfort or whether you want more insulation. Silk is known as an extremely comfortable material but isn't going to provide you with the maximum amount of warmth.
This sleeping bag liner is made from soft silk, which is going to be able to feel great next to your skin while you’re camping. While it doesn’t give you as much insulation as other options, it will still be able to provide you with a nice layer of warmth.
The nature of silk means that it can keep you warm in the winter, but it will also keep you cool in the summer. It gives you excellent temperature control and will work to keep you comfortable in all sleeping conditions, and the lightweight makes it one of the best sleeping bag liners for backpacking.
One area where this sleeping bag liner does fall down is in the quality of the stitching. It’s not very impressive, but it should still be able to last for a long time. The lack of elasticity might be an issue for some in terms of comfort, and there is also no side opening.
The silk does help to make this sleeping bag liner extremely light, which will be great for those looking to backpack. You are easily going to be able to stuff it away and head out onto your next camping spot with your sleeping bag in tow.
A great little feature of the sleeping bag is that there are a range of different colors available, and you’re going to be able to get one that matches your style. It is also machine washable to make it very easy to use time and time again.
Here we see a sleeping bag liner, which puts insulation at the forefront of what it wants to achieve. It is made from thermolite fleece, which is going to increase the range temperatures that you’re going to be comfortable sleeping in.
Despite having that fleece material, some users are disappointed with the amount of insulation that you get from it. If you plan of camping in cold winter conditions, then you might want to look elsewhere, but for three seasons this is a great bag.
Another potential issue that we see with this sleeping liner bag is that it’s not the longest bag on the market. For those around 6ft and over, they may struggle to get comfortable. You might expect for the price you need to pay.
The mummy-shaped sleeping bag liner works to retain any heat which might be lost from the head. It will prevent you from waking up in the middle of the night on those colder nights. Some don't like this shape, but it's great for heat retention.
That insulation is also helped by the drawcord it features, which is very easy to use. Even with those features, the sleeping bag will be able to compact down into a stuff sack easily. That makes it highly portable and very easy to transport.
That portability is also helped by its low weight. Another factor which makes it easy to use is the fact that it's machine washable and will also dry quickly too. The usability of the sleeping bag liner is very high for a comfortable night of sleep.
If you're looking for the highest levels of comfort, then this could well be the perfect sleeping bag liner for you. It's made from premium quality silk and will feel great against your skin. This allows you to have a great night of sleep away from home.
What this sleeping bag liner doesn’t give you is a lot of insulation. If you’re looking for a sleeping bag liner to help you through those colder nights then you might want to look elsewhere. Another possible negative is that it doesn’t come with a stuff sack.
One downside of silk is that it can be difficult to get out of as the surface is so slick. That's only a minor issue, and most people love the comfort that silk can give you. It also contains lycra and polyester to provide it with a great mix of materials.
The polyester part of the silk sleeping bag liner helps to give it the durability that just silk lacks. That is also helped by the reinforced seams, which will ensure that it lasts for a very long time and makes this liner a lot tougher than other silk options.
The lycra is on the side panels, which will allow you to easily move around in the liner as it will give you that stretch that you need. Even with all those materials, the sleeping bag liner is machine washable and can even be machine dried on low heat.
Sea to Summit has also made a range of size options available to allow you to get exactly what you need. Getting that perfect bag liner is also made possible by a great variety of colors. It’s a brilliant sleeping bag liner for those who want extra comfort in nice temperatures.
ALPS Mountaineering has been able to make a sleeping bag liner, which aims for a great compromise between insulation and comfort. It is made from brushed polyester, which is nice to sleep on but also gives you a good layer of warmth.
The lack of a zipper may well be seen as a downside to many users, and instead, the bag utilizes a hook and loop closure system. The occasional problem with that can come from the possibility of sleeping on it and being too uncomfortable.
The sleeping bag can also be a little hard to get in, but that is an issue which many different sleeping bag liners have. What this liner does give you is a lightweight sleeping option that you will be able to easily pack away into a stuff sack.
Mummy-style sleeping bags and liners are a preference for many campers, and this design will be able to keep the cold from creeping into your bag. It can increase the range of temperatures that you’re going to be able to sleep in.
The size and weight of the bag make it ideal for anyone who wants to be able to head off on a backpacking adventure. In hotter climates, it could even be used as a sleeping bag in itself without using any other layers.
In terms of usability, it’s another area where this liner is able to excel. Not only is it easy to carry and comes with a stuff sack, but it is also easy to clean too. It might not be made of silk, but the comfort is still high with the many other qualities it has.
In terms of value for money, this is a truly brilliant sleeping bag liner. It is able to combine all the qualities that you expect in order to have a great night of sleep, whether you are using it on its own or with a larger sleeping bag.
A great feature of this liner, which many others don’t have is that you’re able to open it from the side. This prevents the common issues that many others have when it comes to getting in and out of the sleeping liner.
The double zipper it has will also allow you to get the exact amount of ventilation that you want and allow you to sleep exactly as you wish. The design is also very spacious, and it won’t make you feel cramped or closed off.
If you’re particularly tall, then you might have some issues with the bag as it doesn’t accommodate anyone over or around 6ft. The material of the bag liner is also quite slippery which can make it hard to get in and out of.
One other area where this bag liner falls compared to its rivals is with a low level of breathability. For those who are prone to sweating heavily during their sleep, they might find that this isn't the best option for them.
In most conditions, the cotton material is going to be able to give you a good level of comfort. Once you have finished with the bin liner, then you’d be able to compact it down to a convenient size and take it anywhere that you need it.
Regulating your temperature can be difficult at the best of times. It’s easy to get too cold when the temperature drops or too hot when it increases. California Basics has made a bag liner which excels in both conditions.
In those low temperatures, it will give you a nice layer of warmth, which will allow you to sleep soundly. When the temperatures increase, it will allow your skin to breath and therefore reduce any sweating or unwanted buildup of body heat.
The comfort of a sleeping bag liner doesn’t just come down to how it feels against your skin, and this liner takes that into account. While not quite having the feel of silk, it is soft to touch and is kind to your skin for a full night of sleep.
Like many other models that we have looked at, the sleeping bag liner isn’t the easiest to get in and out of. There is no side opening, and there are times when you feel as though you’re fighting with the thin material.
This sleeping bag liner is by no means heavy, but it is worth noting that it does weigh a little more than most of its rivals. That won’t be an issue for the vast majority of users, but it may be an issue for those who like the idea of ultralight backpacking.
If you want to keep your sleeping bag clean and intact for many years of use, then this liner is going to give you a brilliant barrier that is very easy to clean. Other features such as the anti-draft velcro close will help to keep you warm and snug.
As we mentioned before, sleeping bag liners have to take a view on what is more important to them. If they go heavy on the insulation, then they aren’t able to use the softest materials such as silk, to give you the greatest levels of comfort.
b.m.c has brilliantly been able to make a sleeping bag, which provides you with a wonderfully warm insulation layer while also giving you a good level of comfort. It may not be made of silk, but the microfiber fleece is going to be soft enough while still making it the best warm sleeping bag liner.
The insulation is the biggest feature of this liner, and it makes it ideal for four-season camping and will mean that you can be more flexible with what type of sleeping bag you need. If you are sleeping in warm conditions then you can vent out the bag and liner to be more comfortable.
Some users have actually complained that it’s too warm. It the temperatures rise, then you might find that you don’t want to use the liner at all. That would be a waste of space as the liner is a lot bulkier than other options we’ve looked at.
That size also makes it difficult to repack, but you will get used to it after a while. While it does have its difficulties, there are other features of this liner, which make it easy to use. The zip is very simple, and it will stay out of the way while you’re sleeping.
The thickness of the fleece sleeping bag liner does make it versatile. As well as its primary use, you’ll also be able to use it as a camping sheet or a travel blanket. The liner is also easy to clean which helps to make it a desirable product and one which is ideal for colder conditions.
The material used in a sleeping bag liner will have a large impact on the qualities that it has. Silk is commonly used as a material that will provide the highest levels of sleeping comfort, but it can lack the insulation some need.
Polyester strikes a good balance as this can be made to be almost as soft as silk while providing you with more insulation. If you want the highest levels of warmth then your best bet would be to buy a cotton liner or a microfiber fleece.
Here we have seen two main shapes as you can either get a liner in a traditional rectangle bed shape or you can also get a mummy liner. The best shape for you will most likely be dictated to buy the sleeping bag you have, but this isn’t always the case.
Mummy shapes bags and liners are better at retaining body heat as there is less air to warm up inside of the pack. For many, they can be too restrictive and instead would prefer to be able to spread out a little more and enjoy more space.
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The temperature rating on a bag or liner will be able to show you the minimum temperature that you’d be comfortable in. With liners, they will often show you how much extra the temperature can go down by while still being able to sleep comfortably.
It could be, however, that you're not interested in a liner of the insulation. If you simply want the comfort and the protective barrier then you'd want to look for a liner that provides little or no insulation.
Sleeping bag liners are usually not very bulky at all, as they are made from thinner material. If you are planning a backpacking trip then you also have to factor is the size of your sleeping bag as well as anything else you wish to take.
If you're only going to carrying your gear for a short distance, then this won't matter. If traveling further then you will want to double-check that you're going to be comfortable with the liner of your choice.
A large part of the reason that people get sleeping bag liners is that they stop your sleeping bag from getting dirty. If that is part of their job, then you want to ensure that the liner itself is going to be easy to clean.
All the liners that we have looked at here are machine washable, but you need to make sure you’re checking for any specific instruction such as maximum temperature. Although some can be thrown in a dryer, it’s always a better idea to air-dry your liner.
Comfort – The inside of some sleeping bags is quite rough and not very cozy. A liner will be able to be much kinder to your skin for more comfort.
Protection – When you sleep, sweat, skin cells, and oils can get into the fabric around you. A liner will prevent these from getting to your sleeping bag and will, therefore, extend its lifespan.
Insulation – For those who like to venture out into colder climates, then thicker liners can give you the extra insulation you need. This level of extra warmth will depend on the material used and the thickness of it.
This will be a matter of personal preference. Some people will find it difficult to get in and out of a liner which has closed sides. There isn’t a clear winner between velcro or zip closure, and this will come down to which you prefer to use.
Whether you want comfort, protection, insulation or a combination of all three, a sleeping bag liner can become an essential part of your camping gear. Getting the best sleeping bag liner for you will come down to knowing exactly what you need.
What is the best sleeping bag liner? For pure quality, the Cocoon Silk Mummy Liner is the winner. The silk feels luxurious on your skin while it will give a great barrier of protection to your sleeping bag. It will also give you another layer to keep you warm.
If you’re looking for more insulation or any other features, then thankfully, there are many great options out there. As long as you know exactly what you need you’re going to be able to choose the perfect liner for you and enjoy your next camping trip.
Since the age of 10, Tim, a writer at Outdoor With J, has enjoyed camping in the great outdoors. Although he loves the peace and quiet of the outdoors, he also likes his creature comforts. Tim’s mission is to make camping a fun and comfortable experience for all. You can find more about him here
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