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Best Sleeping Bag Liner

Last Updated: December 26, 2020

When hitting the hay outdoors, a good night’s sleep is crucial to recharging your batteries for a successful survival story.

While there are many contributions to help improve your sleep, sleeping bag liners will enhance your overall survival experience in a variety of ways.

Sleeping bag liners, similarly designed to your bedsheets at home, provide extra warmth and protection, keep your sleeping bag cleaner for longer, and increase your chances of survival.

It is essential to find the best sleeping bag liner that best suits your endeavor.

However, there is a multitude of liners on the market, and it can make finding the right one an arduous task.

That’s why, here at Survival Front, we’ve reviewed five choices to assist you in picking the best sleeping bag liner to meet all of your survival needs!

Our Reviews

OSAGE RIVER Sleeping Bag Liner

Osage River, with the Microfiber Fleece Sleeping Bag Liner, has designed this liner with versatility in mind.

This Osage River liner best performs in the winter or when you find yourself in a colder climate as a result of being crafted with microfiber fleece.

It has a rating of 50 F and can be used as an alternative sleeping bag for young survivalists who may join you on your endeavor.

This sleeping bag liner can not only add extra warmth to your sleeping bag, but it can also double up like a cozy blanket, which will be both ideal and desired in colder climates.

It has an average size of 70 inches in height and 31 inches wide, and although a good size, it may be inconvenient for taller survivalists out there searching for utmost comfort.

Your purchase will also include an accessory bag for easy transport during backpacking and rolls into a compact size. Its pack-down size is 6 inches and weighs a portable 1 lb.

The liners are entirely machine washable. To please acquired tastes, they are available in a range of vibrant colors, including red and blue.

Out of all the five products, this fleece sleeping bag liner is the most inexpensive and is easily accessible for survivalists with different means.

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  • Budget-friendly
  • Made from microfibre fleece
  • Doubles up as a cozy blanket
  • Includes accessory bag for easy pack-up
  • Available in a range of colors


  • Not suited to hot climates

The Friendly Swede Sleeping Bag Liner

The Friendly Swede, a company, well known in the outside world, has not let us down with their sleeping bag liner.

Made from silky polyester, the liner is lightweight and is soft against your skin. It is also ideal with or without a sleeping bag during spring and summer.

This sleeping bag liner has an overall width of 41 inches and a total length of 86 inches, at a generous size it allows you to stretch out your legs in any sleeping bag.

It accommodates both survivalists of different sizes and for those who wriggle in their sleep, providing enough room for overnight comfort.

The liner includes a pillow pocket that protects your pillow from getting dirty and takes away any extra cleaning on your endeavor. It comes in a large size but can fold down into a petite size.

It is an ideal backpacking liner aimed at helping to keep your bedding clean, and you protected from outdoor problems.

At an attractive price, this liner entertains to those on a budget, and The Friendly Swede offers a lifetime warranty – although it is always best to read the terms and conditions.

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  • Suitable for both warm and cold conditions
  • Comfortable silk texture
  • Includes pillow pocket
  • Budget-friendly
  • Velcro closure


  • Some customers describe material as too slippery

Sea to Summit Thermolite Reactor Liner

The Thermolite Reactor Liner is the warmest backpacking knit sleeping bag that Sea To Summit offers, and it has made quite an impression with survivalists.

Not only does Sea To Summit provide an extreme warmth edition, but it also has versions that excel in lightweight and liners that entertain various climates.

This edition, however, is highly recommended for colder temperatures and for when you need additional protection from the unknown.

Sea To Summit compare the hollow fiber thread used to the hollow fur of a polar bear because of its ability to trap heat effectively.

Depending on your atmosphere and sleep conditions, this liner can increase your sleeping bag warmth by up to 25F.

This mummy-shaped liner with a box foot uses hollow-core Thermolite fiber and will add warmth and comfort to your outdoor endeavor.

The liner ideally packs down to a small size into its sack and weighs just 14 ounces, which won’t burden your back or clutter your pack.

It falls on the pricier side of the spectrum, but will no doubt be a great addition to your sleeping bags, especially on the colder nights, and will be an excellent long-term investment.

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  • Mummy shape with a box foot
  • Adds up to 25F warmth to sleeping bag
  • Packs into its own Ultra-Sil stuff pack
  • Thermolite construction throughout


  • Price might turn-off some customers
  • Can be too hot for warmer temperatures

Vumos Sleeping Bag Liner

The fabric used to craft the Vumos Sleeping Bag Liner is 100% polyester, with a silk-like finish, so the soft fabric feels great against your skin, and the lightweight fabric increases breathability.

Without excess material that makes you feel uncomfortable, this liner measures 85 inches long and 33.5 inches wide, making it inclusive for people of different shapes and sizes. For added comfort and practicality, it also includes a pillow pocket.

Vumos offers a full-length zipper that runs entirely down one side and across the bottom of the liner, and when fully unzipped can be used as a large sheet to provide extra warmth and comfort in different climates.

Included with the backpacking liner is a small stuff sack which makes it easy to pack up after use, measuring only 7.5 inches long when packed and weighing a mere 11.5 ounces it won’t take much space in your backpack.

Sold in five different colors, it caters to personal taste and broadens its target audience.

If you want a durable and long-lasting backpacking liner at an excellent price, this could be the liner for you.

However, it offers a full guarantee should you feel dissatisfied with the overall quality.

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  • Silk-like material
  • Includes full length zipper
  • Includes stuff sack, making it easy to pack-up
  • Budget-friendly


  • Breathability has been questioned
  • Reports of a flimsy zipper

ALPS Mountaineering Sleeping Bag Liner

ALPS Mountaineering, another established outdoors company, offers survivalists with their brushed sleeping bag liner.

This sleeping bag mummy liner, which will help to provide a cozy night’s sleep wherever you find yourself in the world, can entertain various climate or temperature.

Crafted from high quality brushed polyester, this liner adds to the warmth of your sleeping bag, and is an excellent choice for winter.

It can be used on its own as a light bag in warmer weather and can also be unzipped entirely to be used as a sheet, giving you the option to broaden its usage.

Included is a stuff sack which brings ease to your journey with its ability to store and to carry around on your back, weighing only 11 ounces.

Portable in size and weight, this liner will not burden your back. It will, instead, enhance your survival chances by providing you with a night of good sleep and a trek of breeze.

The material used can easily be washed and gives you a protective layer between your body and your sleeping bag to keep bacteria at bay and ensures a healthy and clean usage.

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  • Thick brushed polyester material
  • Includes a stuff sack for easy pack-up
  • Includes mummy liner
  • Budget-friendly


  • Some customers doubt the lightness of this product

What to Consider

A sleeping bag liner is a handy addition to your survival kit as it lines your sleeping bag.

Liners are made from both thick or thin (lightweight liners are more practical) materials, and therefore can vary in weight, and shaped like a cocoon. Its purpose is to act as a barrier between you and the actual sleeping bag itself.

The best sleeping bag liner can be slept in when wearing clothes and when wearing no clothes whatsoever.

A more straightforward way of looking at a sleeping bag liner is to compare it to a bedsheet during your outdoor living (surviving!)

Like all additions to your survival kit, it is essential to do your research and consider many factors before finalizing any purchases.

This buyer’s guide will assist in making your final decision on both what delivers in quality and best suits your survival experience.

The Climate You’ll Find Yourself In

It is crucial to examine the climate you plan to camp in before attaching yourself to just any sleeping bag liner.

Sleeping bag liners are manufactured in a few different types of materials, to entertain various weather conditions.

Silk liners are the most lightweight liners and are best suited for summer conditions, but if you’re looking for added warmth, then it will be best to look at other materials.

Alternatively, fleece liners are the best for adding warmth to your bag in cold climates. An insulated liner can raise the temperature inside the bag by up to 25 degrees F, if well made.

Heat Rating

If added warmth is essential to your chosen sleeping bag liner then it is wise to double check the temperature rating in the specifications, which is usually provided by the company.

The number indicates the additional amount of warmth it can provide, and it’s worth noting that the warmest backpacking liners are rated up to 15-25 degrees.

The Liner’s Fit

Although they usually come in a cocoon shape, sleeping bag liners come in several different forms.

Some backpacking liners on the market accommodate those who aren’t of average height or weight and are usually shorter or longer than usual to make sure the liner can match the sleeping bag’s length and width.

Mummy liners provide extra warmth because it forms to the shape of your body, and traps heat while doing so. However, this can be constricting, and if you wriggle in your sleep, it may cause disturbance and discomfort in your sleep.

Weight and Compressibility

You are backpacking and, therefore, won’t want a liner that hinders your every move. Backpacks, especially in a survival setting, will likely be packed to the brim with equipment.

Since most backpacking liners have thick material, they tend to take up a good amount of space.

That’s why it’s essential to acquire a lightweight liner that will fold up much smaller to fit in your pack without having to rearrange your entire kit.

Material of Liner

The lighter weight sleeping bag liners tend to be made from silk and synthetic materials and will benefit your back and take up less space in your backpack since they’re more compact.

The breathability of silk and synthetic backpacking liners is better, which is ideal in hotter climates.

Fleece and insulated liners are more cumbersome and will take up more room in your backpack, but will provide extra warmth to your adventure.

They are best suited to colder climates, and the advantage of this type of liner is they are quick-drying and moisture-wicking, so you won’t have to worry about a damp bag the following evening.


If you’re a known sweater or the climate you’ll find yourself in will be wet, it might be worth to find a liner with a “CoolMax” trademarked feature on it, which will prevent moisture in your sleeping bag.

Sleeping bags, whatever the material, can get steamy, and you want your liner to help wick any moisture away from your body for ultimate comfort and ease.

Bug-repellant Liners

If you find yourself setting base without a tent, then bugs will inevitably occur. Even with a tent, bugs can greet you unwillingly.

To prevent this issue from arising, you might want to find yourself a liner that comes with insect-resistant coated fabrics to deter any unwanted camping companions.

Pillowcase Liners

Pillowcase liners are deal for trips when you aren’t able to shower for long periods, as they protect your pillow from dirt, and save you from cleaning it more than you have to.

It isn’t a fundamental inclusion but is a consideration to take into account before you choose the best sleeping bag liner for you.


After reading through our reviews and buyer’s guide, we hope you’ve found your match and now have a sleeping bag liner to be added to your survival kit.

Choosing the best sleeping bag liner is not an easy decision. However, after a thorough exploration, my personal favourite has to be The Friendly Swede Sleeping Bag Liner.

Not only is it birthed from a respected company, it has all the factors to see you through various climates and provide comfort wherever you find yourself in the world. All at an affordable price.

However, as outlined by the multitude of choice featured on our list, there are many liners out there to be admired. We hope this review has provided you with the insight into choosing the best sleeping bag liner.

Please leave any feedback in the comment section below, and if you have any suggestions for future reviews or topics please don’t hesitate to get in touch. We’d love to hear from you!

Good Luck and Happy Survival Prepping!

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