10 Best Sleeping Bag Liners for Backpacking (From $25 and Up)

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For any experienced backpacker, a sleeping bag liner proves to be a versatile item of gear that can help increase warmth or decrease pack weight while out on the trail. Whether paired with a sleeping bag or utilized as a standalone option on warm summer nights, a quality sleeping bag liner is, in my opinion, an essential piece of gear.

Sleeping bag liners are lighter and more comfortable than sleeping bags alone, and can help to support the life of your sleeping bag. Ultimately you can’t go wrong picking up a quality sleeping bag liner from one of the manufacturers we cover in this article, and they range across a variety of build materials and price points so you’re sure to find what you need.

How I Review Sleeping Bag Liners

In my nearly two decades of hiking and camping, I’ve had the opportunity to test the benefits and drawbacks of various sleeping gear arrangements on the trail. I’ve found that the versatility offered by sleeping bag liners makes it a lot easier to get a great night of rest when hiking, however, you need to make sure that the liner you choose will be the best-performing option for you out on the trail. With more sleeping bag liners available now more than ever you’ll be sure to find the perfect addition with our guide.

There are a few considerations that I look for when evaluating sleeping bag liners for backpacking trips. Obviously the material of the sleeping bag liner, and how durable and comfortable it performs on the trail are at the top of my mind. Additional factors that I consider are the weight of the liner(as every ounce counts out on the trail), how packable the liner is, what temperature rating the sleeping bag liner can be utilized in, and whether it has any moisture-wicking or anti-odor properties.

Best Backpacking Sleeping Bag Liners

Best Synthetic Sleeping Bag Liner

Sea to Summit Thermolite Reactor Sleeping Bag Liner

If you’re looking for a dependable and lightweight sleeping bag liner then you need not look much further than the Thermolite Reactor from Sea to Summit. I’m personally a huge fan of this sleeping bag liner and the roughly 14°F of insulation that it can add to your sleeping bag. It’s a great choice all on its own if you’re sleeping in warm weather as well.

The lightweight build of this sleeping bag liner is deceiving, as the Thermolite insulation is a hollow-core fiber that provides extraordinary warmth for its weight and remains extremely breathable. It’s very comfortable, more compact, and warmer for its weight than fleece liners. This liner also has a drawstring by the hood which allows you to adjust the fit easily.

Coming in at just under $70, I’ve found that the Thermolite Reactor is the best option if you’re looking for a quality synthetic sleeping bag liner that can perform in a wide range of settings.

Best Silk Sleeping Bag Liner

Cocoon Silk Mummy Liner

Silk liners are lightweight, compact, and breathable. They’re a great option if you’re camping in warm weather. The Cocoon Silk Mummy Liner is extremely comfortable and a great option if you want a luxurious feel when sleeping outdoors.

This liner can add up to 8.4°F in insulation, and when weighing less than 5 ounces you definitely won’t mind having it in your pack. On hot summer nights, silk helps to keep you cool with its breathable nature. The only drawback with silk is the price point and I’ve found that it’s less durable when compared against synthetic.

Best Cold Weather Sleeping Bag Liner

Sea to Summit Thermolite Reactor Fleece Liner

The Thermolite Reactor Fleece Liner is warm and cozy, making it a good choice for camping in colder weather. It’s soft and comfortable, which can make a big difference when you’re trying to get a good night’s sleep in cold weather. Fleece liners are also durable and easy to clean, which is important if you’re camping in dirty or wet conditions.

One of the downsides of fleece liners is that they’re not as breathable as silk or synthetic liners. They can also be bulky and heavy, which can be a problem if you’re trying to pack light. You definitely won’t want to use this liner in summer weather but on colder nights this is my top choice. The Reactor Fleece Liner is also relatively lightweight for winter gear, coming in under a pound.

Best Cotton Sleeping Bag Liner

Cocoon Organic Cotton MummyLiner

If you’re looking for a lightweight and comfortable liner, check out the Cocoon Organic Cotton MummyLiner. This liner adds up to 5°F in insulation and can be utilized as a standalone option on warm nights.

Cotton liners are soft and comfortable, making them a good choice for people who are sensitive to other materials. They’re also breathable, durable, and easy to clean. The affordable nature of cotton compared to other liner materials makes this liner a great value.

Best Budget Sleeping Bag Liner

Cocoon Microfiber Mummy Liner

If you’re looking for a solid budget liner, I’d recommend the Cocoon Microfiber Mummy Liner. This polyester sleeping bag liner adds up to 5°F in insulation and can be utilized as a standalone option on warm nights. Weighing only 8 ounces and packing down to a compact size, this is a great entry level liner that feels more premium than the cost.

The Cocoon Microfiber Mummy Liner is easy to wash, simply machine wash it in cold water and tumble dry low. Overall, I highly recommend this liner to anyone looking to add some extra comfort and protection to their sleeping setup on a budget.

More Great Sleeping Bag Liners

Western Mountaineering Hot Sac Vapor Barrier Liner

The Western Mountaineering Hot Sac Vapor Barrier Liner is a high-quality and effective liner for cold-weather camping. Its lightweight ripstop material helps prevent heat loss from evaporated cooling and degradation of the insulation over time, making it a great addition to your sleeping bag. The liner is designed to trap moisture and body heat, which can add extra warmth and comfort on colder nights.

Therm-a-Rest Synergy Sleeping Bag Liner

The Therm-a-Rest Synergy Sleeping Bag Liner is a versatile and practical addition to any camping or backpacking setup. Made of soft and cozy polyester, this liner adds warmth and comfort to any sleeping bag while still remaining durable. The liner is lightweight and easy to pack, making it a great option for backpackers and hikers.

Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner

The Sea to Summit Thermolite Reactor Extreme Sleeping Bag Liner is a great choice for anyone looking to add extra warmth to their sleeping bag. Made of insulating Thermolite fabric, this liner adds a full 25°F of warmth to your sleeping bag, making it a great option for colder nights. The hollow-core, breathable fiber provides extraordinary warmth for its weight, and the liner itself is lightweight and easy to pack.

Cocoon COOLMAX Mummy Liner

The Cocoon COOLMAX Mummy Liner is a great addition to any camping or outdoor sleeping setup. Made of breathable, moisture-wicking COOLMAX fabric, this liner adds an extra layer of comfort and protection to your sleeping bag.

Sea to Summit Expander Travel Liner

The Sea to Summit Expander Travel Liner is a great option for couples sleeping together who are looking to add some extra comfort and protection to their sleeping setup. Made of a super soft and stretchy knitted poly-cotton material, this liner offers an unprecedented level of comfort in a budget-priced liner.

The liner is also lightweight and easy to pack, making it a great option for backpackers and hikers. The built-in antimicrobial treatment keeps odors at bay, and the liner is machine-washable for easy cleaning. This liner is a great investment for couples looking to add some extra comfort and protection to their sleeping setup.

Understanding Sleeping Bag Liners

Sleeping bag liners are an essential accessory for any camping or backpacking trip. They are designed to provide an extra layer of insulation, protect your sleeping bag from wear and tear, and keep you comfortable throughout the night. In this section, I will explain the different types of sleeping bag liners, their benefits, and how to choose the right one for your needs.

Check out our guide on the different types of sleeping bag liners and their pros and cons.

Types of Sleeping Bag Liners

There are several types of sleeping bag liners available on the market. Each type has its own unique features and benefits. Here are the most common types of sleeping bag liners:

• Cotton Liners: These liners are made of natural cotton fibers and are the most affordable option. They are soft, comfortable, and easy to clean. However, they are not as lightweight or compact as other types of liners.
• Silk Liners: Silk liners are lightweight, compact, and breathable. They are ideal for warm weather camping and can regulate your body temperature. However, they are not as durable as other types of liners and can be expensive.
• Fleece Liners: Fleece liners are warm and cozy, making them ideal for cold-weather camping. They are soft, comfortable, and easy to clean. However, they are not as lightweight or compact as other types of liners.
• Synthetic Liners: Synthetic liners are made of polyester or other synthetic materials. They are lightweight, durable, and easy to clean. They are also affordable and can provide extra warmth. However, they are not as breathable as other types of liners.

Benefits of Sleeping Bag Liners

Sleeping bag liners offer several benefits for camping and backpacking trips. Here are some of the main benefits:

• Extra Insulation: Sleeping bag liners can provide an extra layer of insulation, keeping you warm and comfortable throughout the night.
• Hygiene: Sleeping bag liners can protect your sleeping bag from sweat, dirt, and other contaminants, making it easier to keep your sleeping bag clean.
• Comfort: Sleeping bag liners can add an extra layer of comfort, making it easier to get a good night’s sleep.
• Versatility: Sleeping bag liners can be used on their own in warm weather or combined with a sleeping bag in cold weather.

Choosing the Right Sleeping Bag Liner

When choosing a sleeping bag liner, there are several factors to consider. Here are some of the main factors to keep in mind:

• Material: Consider the material of the liner and how it will affect your comfort and warmth.
• Size: Make sure the liner is the right size for your sleeping bag and body type.
• Weight and Packability: Consider the weight and packability of the liner, especially if you will be backpacking.
• Price: Consider your budget and how much you are willing to spend on a sleeping bag liner.

Overall, sleeping bag liners are an essential accessory for any camping or backpacking trip. They offer several benefits and can make a big difference in your comfort and warmth throughout the night. When choosing a sleeping bag liner, consider the material, size, weight, packability, and price to find the right one for your needs.

Key Features to Consider

When it comes to choosing the best sleeping bag liner, there are several key features to consider. In this section, I will discuss the most important factors to keep in mind when selecting a liner for your next camping trip.

Size and Shape

One of the first things to consider when choosing a sleeping bag liner is the size and shape. You want to make sure that the liner fits comfortably inside your sleeping bag without adding too much bulk or weight. Look for a liner that is designed to fit the shape of your sleeping bag, whether it is rectangular or mummy-shaped.

Weight

Another important factor to consider is the weight of the sleeping bag liner. If you are backpacking or hiking, you want a liner that is lightweight and easy to pack. Look for a liner made from lightweight materials, such as silk or synthetic fabrics.

Warmth

The level of warmth provided by a sleeping bag liner is also an important consideration. Some liners are designed to add extra warmth to your sleeping bag, while others are designed to be used on their own in warmer weather. Look for a liner that provides the right level of warmth for the conditions you will be camping in.

Easy to Clean

Finally, you want to choose a sleeping bag liner that is easy to clean. Look for a liner that is machine washable and easy to dry. Some liners also come with antimicrobial properties to help prevent odors and bacteria buildup.

Overall, when choosing a sleeping bag liner, it is important to consider the size and shape, weight, warmth, and ease of cleaning. By keeping these key features in mind, you can find the perfect liner for your next camping trip.

Pros and Cons of Using a Sleeping Bag Liner

Pros of Using a Liner

I’ve found that using a sleeping bag liner has several benefits. Here are some of the pros of using a liner:

• Adds warmth: A sleeping bag liner can add up to 25°F of warmth to your sleeping system, making it a great addition for cold weather camping.
• Keeps your sleeping bag clean: A liner helps keep your sleeping bag free of dirt and body oils, making it much easier to clean and prolonging its lifespan.
• Comfortable: A liner can add an extra layer of comfort between you and your sleeping bag, making for a more enjoyable night’s sleep.
• Versatile: A liner can be used on its own as a lightweight sleeping bag in warmer weather or as a barrier between you and the bedding in hostels or hotels.

Cons of Using a Liner

While there are several benefits to using a sleeping bag liner, there are also some downsides to consider. Here are some of the cons of using a liner:

• Adds weight and bulk: A liner can add weight and bulk to your camping gear, making it less ideal for backpacking or minimalist camping.
• Can be expensive: Some liners can be expensive, especially those made from high-quality materials like silk or merino wool.
• Not necessary in all situations: In warmer weather or for short camping trips, a liner may not be necessary and can be left behind to save weight and space.

Overall, using a sleeping bag liner can be a great addition to your camping gear. However, it’s important to consider the pros and cons before making a purchase to ensure that it fits your camping needs and preferences.

How to Properly Use a Sleeping Bag Liner

As someone who has used sleeping bag liners extensively when on backpacking trips, I can attest to their usefulness in a variety of situations. Here are a few tips for properly using a sleeping bag liner:

1. Choose the Right Liner: The first step is to choose a liner that fits your needs. Consider the type of sleeping bag you have, the climate you’ll be using it in, and your personal preferences. A liner made of silk or synthetic material will be lightweight and easy to pack, while a fleece liner will provide extra warmth in colder temperatures.
2. Use it as a Barrier: A sleeping bag liner can be used as a barrier between you and the sleeping bag. This will help keep your sleeping bag clean and free from dirt and sweat. It will also add an extra layer of insulation, keeping you warmer on colder nights.
3. Keep it Clean: It’s important to keep your sleeping bag liner clean. Most liners can be machine washed and dried, but be sure to check the care instructions before washing. Keeping your liner clean will help prevent the buildup of bacteria and odors.
4. Adjust the Fit: Once you’ve placed the liner inside your sleeping bag, adjust the fit as needed. Secure any Velcro tabs, adjust the footbox and hood to your liking, and crawl into the liner. Zip it up and adjust the hood if necessary.
5. Enjoy a Good Night’s Sleep: A sleeping bag liner can make all the difference in getting a good night’s sleep. It will keep you warm and comfortable, and provide an extra layer of protection for your sleeping bag. With a little bit of care and attention, your sleeping bag liner can last for years to come.

Sleeping Bag Liners for Backpacking

Choosing the best sleeping bag liner depends on your specific needs and preferences. Consider the material, size, weight, and additional features such as insulation.

Overall, a sleeping bag liner can provide added comfort, warmth, and hygiene while camping or traveling. With the variety of options available, you can find the perfect liner to suit your needs and enhance your sleeping experience.

Frequently Asked Questions

What are the benefits of using a sleeping bag liner?

Using a sleeping bag liner can provide several benefits. It can keep your sleeping bag clean and extend its lifespan. It can also add an extra layer of insulation and warmth, making it useful for colder temperatures. Additionally, it can be used on its own in warmer weather or in hostel stays to provide a barrier between you and the bedding.

What are the different types of sleeping bag liners available?

There are two main types of sleeping bag liners: mummy-shaped liners designed to fit inside a sleeping bag, and rectangular liners (also known as travel sheets) designed for use on their own or inside a rectangular sleeping bag. Materials for sleeping bag liners can vary, including silk, cotton, fleece, and synthetic blends.

How do I choose the right size sleeping bag liner?

It’s important to choose a sleeping bag liner that fits your sleeping bag properly. Look for a liner that matches the shape and size of your sleeping bag. Mummy-shaped liners are designed to fit snugly inside mummy-shaped sleeping bags, while rectangular liners are designed to fit inside rectangular sleeping bags. Be sure to check the dimensions of both your sleeping bag and the liner before making a purchase.

Can a sleeping bag liner add warmth to my sleeping bag?

Yes, a sleeping bag liner can add an extra layer of insulation and warmth to your sleeping bag. Some liners are designed specifically for this purpose, such as the Sea to Summit Thermolite Reactor liner. However, it’s important to note that a liner alone may not be enough to keep you warm in extremely cold temperatures.

Are there any downsides to using a sleeping bag liner?

One potential downside to using a sleeping bag liner is that it can add extra weight and bulk to your gear. Additionally, some materials may not be as breathable as others, leading to discomfort in warmer temperatures. It’s also important to note that a liner alone may not be enough to keep you warm in extremely cold temperatures.

What materials are best for a sleeping bag liner?

The best material for a sleeping bag liner depends on your personal preferences and intended use. Silk is lightweight and breathable, making it a good choice for warm weather. Fleece is warm and cozy, making it a good choice for colder temperatures. Cotton is soft and comfortable, but can be heavy and bulky. Synthetic blends can provide a balance of warmth and moisture-wicking properties.