Are you worried about warmth in winter camping? Or Do you ever know how you can warm up your sleeping bag? A sleeping bag liner is a remedy. Best sleeping bag liners like the sheets you use on your bed provide some level of protection and warmth. They are also essential to maintain your bag cleaner for a more extended period. But do you know which sleeping bag liner is best for you?
Don’t worry! We are here today to help you make a good decision for your next camping experience. Here are 11 of the best sleeping bag liners for camping in 2021.
- Cocoon Silk Mummy Liner
- Western Mountaineering Sonora Liner
- Big Agnes Fleece Sleeping Bag Liner
- Teton Sports Cotton Liner
- Sea To Summit Premium Silk Liner
- ALPS Mountaineering Microfiber Mummy
- Rab Silk Sleeping Bag Liner
- Sea to Summit Thermolite Reactor Liner
- Therma-a-Rest Sleep Liner
- Western Mountaineering Tioga Silk
- Sea To Summit Adaptor Coolmax Insect Shield
We can help you find the best sleeping bag liner for your needs, whether you’re getting ready for your next wilderness adventure or preparing to hostel jump. So let’s jump right to it.
Cocoon Silk Mummy Liner
- Price: 60$
- Added Warmth: 5°F / 2.8°C
- Insulation: Silk
- Weight: 4.7oz
If you are looking for a lightweight, durable liner made of quality material with excellent protection against the skin, Cocoon Silk Mummy Liner is the best choice.
It’s not silk, but the CoolMax polyester blend used in the Cocoon Coolmax sleeping bag liner is close to, if not on par with, its more expensive silk rivals in all but packability. Not to notice how soft it feels against your skin. Silk can pack small without weighing too much. It is simple to fill in any bag and take it with you on a backpacking trip.
The Cocoon Silk Mummy Liner is a tapered bag that is as soft as it sounds. Because of its adaptability, silk is one of the finest materials. In addition, it acts magnificently to temperature changes, making it suitable for use in both the winter and summer months.
Cocoon Coolmax sleeping bag liner is an excellent option if looking for a less expensive silk liner. It is a famous silk bag liner that is ideal for ultralight backpacking. It’s pretty simple, like other ultralight liners, but this liner shines in its simplicity. In addition, silk is soft on the skin and does not retain.
The Cocoon Silk Mummy Liner must be hand-washed, but it dries quickly, making it an excellent travel companion. The CoolMax has great wicking qualities, is very comfortable breathable, and can add up to 8.4 degrees of warmth to your sleeping bag. While more expensive than most other non-silk choices, this is a clear contender for the best sleeping bag liner for warmth.
- Breathable with excellent moisture wicking
- Temperature adaptable regulates body temperature regardless of whether it is hot or cold.
- The texture is smooth and soft against the skin.
- The lightweight material makes it portable and machine washable.
- Less expensive silk liner. For a slight weight penalty, it adds a smooth, odor-resistant layer between you and your sleeping bag.
- Excellent warmth-to-weight ratio
- Packs down to 3.5 x 7 inches when packed.
- Large and soft against the ski
Western Mountaineering Sonora Liner
- Price : $42.00 – $52.00
- Added Warmth: 2°F / 1°C
- Insulation: Polyester
- Weight: 5.0oz
Western Mountaineering Sonora Liner is an excellent lightweight option for someone looking for a lightweight and compact sleeping bag liner or travel sleep sack. Polyester is one of the most commonly used materials for bed sheets. However, the big selling point for this bag liner is that you wake up feeling like you’re in your bed, even if you’re camping.
The Western Mountaineering Sonora Liner is designed to be as user-friendly as possible. It doesn’t add as much warmth as the products mentioned above, but it does add a couple of degrees.
The Western Mountaineering Sonora Liner comes with a stuff sack to preserve the packed size compact, 3″ x 5.5″, or 7cm x 13cm. It does, however, have the moisture-wicking ability to keep you dry regardless of the temperature.
A further aspect of manageability is machine washability. When you return from a trip, toss it in to keep it from smelling like a musty version of a campfire.
- Polyester moisture management.
- Stuff the liner into a sack.
- The liner material is machine washable.
- Silk is a lightweight, soft fabric.
- Closure with a drawcord
- Extremely light and compact
Big Agnes Fleece Sleeping Bag Liner
- Price: $45
- Added Warmth: 5°F / 10°C
- Insulation: Polyester
- Weight :14.5.0oz
Are you looking for a Polartec recycled microfleece material liner for your next camping experience? This is for you. This liner is made entirely of cotton, ideal for summer trips where comfort is more important than warmth.
This one could be your “bag” for car-camping trips or buyers willing to carry a little extra weight in exchange for a little different quality and longevity.
This liner’s more durable materials make it more likely to withstand frequent use than most budget-friendly models, and it’s also a good choice if you plan on using your liner without a sleeping bag during the summer months.
Big Agnes sleeping bag liners are made of Polartec recycled microfleece, which can add 5-10 degrees of warmth to your sleeping bag’s temperature rating. This is made of super-soft recycled fleece, has reinforced seams for added durability, and is backed by a lifetime warranty.
The Big Agnes Fleece Sleeping Bag Liner is intended to be used alone on warm nights or to supplement the temperature of your normal sleeping bag. This cozy fleece liner is fixable, permitting it to fit inside either the right or left zipper sleeping bag.
This is one of the heavier liners in this recommendation list, so it’s not ideal for backpacking, except in hot weather when you can use it in place of a bag. This liner opens on the side and snaps shut, allowing you to control the amount of coverage you’ll have easily.
This is the priciest model in our comparison. However, in exchange for the extra weight and cost, you get a product that provides a significant improvement in luxury and coziness to any sleep structure, as well as plenty of added warmth for chilly nights.
- Liner made of recycled materials and best for versatile usage
- It is warm and will fit most sleeping bags.
- It feels lovely against the skin.
- Long-lasting seam construction and a lifetime warranty
- Increases the temperature by 5-10 degrees.
- A stuff sack is included.
Teton Sports Cotton Liner
- Price: $34
- Added Warmth: 10°F / 4°C
- Insulation: Cotton
- Weight: 12oz
This budget-friendly choice is available in two sizes, two material types, and two shapes, and it provides the best bang for your buck by a significant margin. In addition, the Teton Sports Cotton Liner works well in conjunction with other Teton products and on its own as a travel sheet.
This rectangular Teton cotton liner is made of cotton. But the material used in both cotton and polyester. Typically, a lack of form, such as that found in mummy bags, indicates that it is not insulated.
The Teton Sports Cotton Liner distinguishes this bag with a square pillow hood. The liner’s seams have been reinforced to make it more durable. This liner machine is washable and dryable, and it comes with a single stuff sack.
- Warm and best spacious liner
- Lifetime warranty period
- It is a more budget-friendly option because it is less expensive.
- Best velcro addition maintains insulation.
- The liner material is machine washable.
- There has Opens 24” on each side
- Pillow hood
Sea To Summit Premium Silk Liner
- Price: $99.95
- Added Warmth: Several degrees
- Insulation: Silk
- Weight: 4.8oz
The Sea to Summit Premium Silk liner is one of the most famous sleeping bag liners on the market, and it’s easy to see why. This exceptionally well-made liner has an integrated hood, a small pack size, double-stitching, stretchy side panels, and weighs only 4.6oz.
Perhaps the most appealing feature is that it overcomes the two most common drawbacks of silk liners by being made of ripstop silk and machine washable. When combined with the integrated hood, these features elevate this little beauty to the ranks of the best backpacking liners on the market.
Sea to Summit offers a variety of sleeping bag liners. They make their silk liners with ripstop fabric. Stretch panels are made from a blend of polyester and Lycra. The goal is to keep the bag moving with you throughout the night.
The Premium Silk is also available in various shapes and sizes, is highly breathable, and feels fantastic against the skin. A tough, ultra-light, packable, and well-designed choice that goes above and beyond to ensure a restful night’s sleep.
Sea To Summit Premium Silk Liner weighs almost nothing, packs down to a tiny bundle, adds a few degrees of warmth, and is made of a much tougher ripstop fabric than its silk-made rivals.
What distinguishes it is the use of stretchy polyester inserts along the seams. These give the sleeper a little more portability and legroom than a silk or cotton sleeping bag liner, making them an excellent choice for anyone (most of us!) who dislikes the constricted feel of traditional silk.
- Integrated hood and machine washable
- Silk and cotton blend that is soft and comfortable.
- The stuff sack is included.
- Longevity is increased by the use of a durable ripstop design.
- Silk fabric that is smooth and soft.
- Very light, with small pack size.
- Side panels that stretch for easy entry and exit
- stitched twice
ALPS Mountaineering Microfiber Mummy
- Price: $21.73
- Added Warmth: 5-10°F
- Insulation: Polyester
- Weight: 9.6oz
If cost-effectiveness is vital to you, the ALPS Mountaineering Microfiber Mummy is well wise to consider. However, a little narrower in the foot area and significantly heavier than the majority of the items in our review, the ALPS MicroFiber Mummy has an extremely cozy, comfortable feel and is priced in the middle of high-end silk or CoolMax selections and budget options.
While ALPS does not have a temperature rating, we estimate that the Microfiber Mummy adds 5-10°F. The microfiber fabric is also extremely comfortable and feels as excellent against the skin as any other model. This liner is made of synthetic microfiber content that feels like a fleece blanket against your skin, notably after a few washes.
But unlike liners, which require you to crawl into them from the top, this one folds open on the right side. This dramatically simplifies getting in and out of it. As a result, it will feel almost like your sheets at home. Even so, if your sleeping bag opens on the left side, this right-side opening may be uncomfortable.
This is a good choice for those looking for a well-made mummy-style bag without a high price tag. It packs down to a very little 3.5 x 6.5 inch and offers a mildly more substantial layer than other super-thin liners. The main disadvantage of this liner is its relatively small size. It’s a whole 4 inches narrower across the chest.
- This is a very affordable option for someone looking to try a sleeping bag liner for the first time.
- It folds up to 3.5 x 6.5 inches.
- Soft, snag-free material provides a cozy feel.
- Design that is simple but functional
Rab Silk Sleeping Bag Liner
- Price : $64.95 – $74.95
- Added Warmth: 2°C
- Insulation: Silk
- Weight: 5.4 oz
If you’re a tall person or just want a little extra length for comfort, the Rab Silk Sleeping Bag Liner could be the best bag for you. This is the most excellent sleeping bag liner for off-grid travels.
This beast measures a whopping 89 inches (225cm) in length, at least 5cm longer than any of its competitors in our review. Rab Silk Sleeping Bag Liner weighs only 120g, packs down to the size of a coke can, and feels super smooth against the skin.
There isn’t much of a warmth uplift, and you will slip and slide around more once inside, but that’s minor. This Rab liner is made of 100% silk and has a mummy cut. It has an elegant yet technical design and is as light as possible.
It was soft, cozy, and gossamer-thin, and it fit perfectly into the tiniest of backpack pockets. Although this is a more expensive option, the pillow insert and extra length make it possibly the best sleeping bag liner for backpacking on the market. The only disadvantage is the cost.
- Extra spacious and lightweight
- Pillow insert and a great option for tall users
- Extra comfort with extra length
- 100% silk with cosy and soft
Sea to Summit Thermolite Reactor Liner
- Price: $62.95
- Added Warmth: 14°F / 8°C
- Insulation: Thermolite® (Hollow-core fiber)
- Weight : 8.1oz / 230g
Aside from their silk offering, Sea to Summit has also designed a winter activity option. This liner is the warmest choice available. It’s a tremendous cold-weather best choice for those who need a little extra warmth. This is ideal for a reason: it’s compact and lighter weight than fleece.
The hollow-core fibers trap heat and provide excellent insulating properties. To make this product, they created a hollow-core fiber. Consider the fur of a polar bear, and then consider a fleece that you can snuggle into. It is the method by which the bag traps heat from your body to maintain you warm.
With a mummy shape, foot box, and drawcord hood, this is a fantastic stretchy, soft, and comfy option. The liner is shaped like a mummy, with a box and a drawcord hood with a cord lock. It lacks engineered side panels and may move around inside your sleeping bag.
- It increases the temperature of a sleeping bag by 14°F / 8°C.
- The fleece is soft to the touch.
- Lighter in weight and more compact
- Mummy silhouette with a box foot
- Hood with drawcord and mini cord lock
- It fits into its Ultra-SilTM stuff sack.
- It can be used as a stand-alone product or as an addition.
Therma-a-Rest Sleep Liner
- Price: $60
- Added Warmth: 5°F / 3°C
- Insulation: Polyester
- Weight: 11oz
Therma-a-Rest Sleep Liner is made of brushed polyester. It adds up to 5° of warmth and provides sanitary protection regardless of where you are. Thermarest is a well-known brand in the sleeping bag and sleeping mat markets, so it stands to reason that they have also created a great sleeping bag liner.
The machine-washable smooth sleep liner created a versatile design by sewing in loops to incorporate additional quilts or blankets and develop an even warmer sleeping system. According to the brand, the liner offers a good warmth boost – three degrees, and works well as a stand-alone sheet in warmer climates.
The standard version weighs 11 oz, folds up to 23cm x 12cm, and is machine washable. The brushed polyester material is smooth on the skin, so you’ll be comfortable no matter where you sleep at night. Because the zipper is located on the left side of the liner, it will work much better with quilts or sleeping bags that have a left-side zipper.
The zip has a 34 design that makes entering and exiting the bag easier. The Therma-a-Rest Sleep Liner is available in three sizes: slim, regular, and long. This liner is very easy to get into, thanks to a 34-length side entry zipper. Also, if it gets too hot during the night, you can unzip the liner to allow for more breathing.
- The side entry zipper makes it very easy to get in and out of. In addition, because it can be used to ventilate, the zipper adds versatility when camping in warm weather.
- Liner material that is machine washable
- There are loops included for quickly adding a quilt or blanket.
- Size customization is available in three different sizes.
Western Mountaineering Tioga Silk
- Price : $80
- Added Warmth: 5°F
- Insulation: Silk
- Weight: 3.65 oz
Look no further than the Western Mountaineering Tioga Silk Liner for a highly lightweight sleeping friend. With a weight of 3.65oz (103 grams), this is the lightest liner and perfect for long-distance journeys where weight is a consideration.
Very few liners come close to matching the Western Mountaineering Tioga for multi-day backpacking trips and weight-weenies. This liner weighs folds down to 2.5″ x 4.5″.
It also brings a respectable 5°F of warmth, is made of super soft and highly breathable fabric, and is available in three different shapes and sizes. Two other lovely highlights are a drawstring collar to maintain drafts out and a stuff sack attached to the liner to prevent loss are two other lovely highlights.
While it won’t provide as much warmth as other liners and is a little narrow around the foot area, the WM Tioga is perfect for those who want to keep stuff ultra-light and are more concerned with hygiene, bug safety, and mass than extra warmth.
- Extremely breathable and ultra-lightweight
- Miniature packed size
- There are three different shapes/sizes available.
- Fabric is soft and comfortable
- Stitching on both sides
- Attached is a stuff sack.
Sea To Summit Adaptor Coolmax Insect Shield
- Price : $62.95 – $66.95
- Added Warmth: Unavailable
- Insulation: Polyester
- Weight: 9 oz
If you frequently camp in areas where biting insects are a problem, the Coolmax Adaptor Insect Shield is an excellent purchase. The S2S Adaptor is a super-comfortable, high-performance liner that can be used as a stand-alone cover for hot summer nights or as a slight temperature booster for your regular sleeping bag.
This liner has all of the same features as the standard Coolmax Adaptor listed above. In addition, it’s lightweight, packable, moisture-wicking, and made of stretchy material that allows you to toss and turn without getting tangled.
It has great breathability, but it’s a little lighter and has a very clever foot box for extra room and less toe-snagging when tossing and turning.
A long-lasting insect repellent care that helps keep mosquitoes, chiggers, midges, ticks, flies, ants, and fleas at bay is an extra benefit to all of the above.
- The 3D footbox provides more space for your feet.
- Machine washable
- Warmth and breathability
- Adapts to a variety of temperatures
- Excellent moisture wicking
- Fabric that is soft and stretchy
- Material is soft and flexible.
- Compact and ultra-Sil™ stuff sack
- Packs down to 3 x 5 inches in size
Best Sleeping Bag Liners For Camping – Buying Guide
The most difficult challenge for campers on outdoor adventures is getting a good night’s sleep. But there’s no need to worry. The best sleeping bag liner appears to be a simple product. Quality research, on the other hand, comes with every qualifying purchase.
Before you buy, here are the main things you should know about sleeping bag lines.
The temperature rating method differs from that used for sleeping bags. Rather than being rated according to a particular temperature or range, sleeping bag liners are rated according to the value of warmth they can add to an existing sleeping system.
Sleeping bag liners function similarly to your clothing layering system, forming an additional buffer between your body and the ambient air, creating a layer or pockets of warm air on either side. This can increase your sleeping bag’s low-temperature rating by up to 5 degrees.
The Sea to Summit Premium Silk Liner and Cocoon Silk Mummy Liner, for eg, add only about 5°F to a bag or on their own, whereas the Big Agnes McKinnis Liner made with down adds up to 15°F.
Materials for liners
Each liner is made from one or more of the materials. Each of them has advantages and disadvantages that you should be knowledgeable of before purchasing. Here are the best materials that are commonly used in the market.
Silk is a lightweight fabric that folds up easily. It has a wide range of applications because it smartly insulates in cold weather and wicks moisture away in hot weather.
Silk is the idea to go if you’re significant about your sleeping bag liner and don’t mind spending a little more to get the better. Silk not only feels lovely against the skin and requires very little washing.
The Cocoon Silk Mummy Liner is an outstanding example because it is only 4.7oz but is highly effective. Silk is typically the most expensive material for sleeping bag liners.
Polycotton and cotton
Cotton is less expensive while remaining warm and absorbent. In addition, it is a durable and long-lasting material. Cotton sleeping bag liners are an attractive choice for a variety of reasons. They’re less expensive than silk, less prone to ripping, simple to clean, and feel great against the skin.
While cotton liners add extra bulk and weight, making them unsuitable for weight-conscious people, they’re a good option if you’re car camping or easily don’t mind carrying a few additional ounces to save money.
Despite being the ‘cheap’ option, Cotton and polycotton liners usually offer a very comfortable, cozy feel and can even increase the warmth of your sleeping bag by a degree or two more than silk alternatives.
They don’t compress to the same size as silk liners and typically weigh a little more, but they’re less prone to ripping, a lot less expensive, and can be washed with the rest of your stickies without impacting the fabric.
Cotton is not a lightweight fabric and does not fold up small. When folded down, the Sea to Summit Silk mummy silk liner measures 4.5″ x 4″ x 2.5″. The cotton liner from Teton Sports folds down to 9″ x 5″.
The warmest sleeping bag liners are made of fleece. Some can provide up to 15°F of warmth, while others may only provide 2 to 5°F. It’s soft and absorbent, but it dries quickly.
Fleece liners, on typical, add oodles of warmth and feel as great against the skin as your average bathrobe, outperforming even the greatest cotton liners in terms of soft texture. Fleece liners range in price from moderate to expensive. Unfortunately, they are also large, often weighing more than a pound.
The Big Agnes Fleece is our best-loved fleece liner. This weighs a hefty 20 oz and has a bulky packed size of 10 x 6.5 inches, but it earns a spot on our list due to its excellent comfort levels and long-lasting materials.
Weight and Packed Dimensions
While weight and packed size aren’t as important when car camping if you’re planning a multi-day trip into the backcountry, it’s worth considering how much extra weight you’re willing to carry before purchasing.
The sleeping bag liners in our guide range in weight from 3.6 ounces (Western Mountaineering Tioga) to 24 ounces (TETON Sports Mammoth), with packed sizes ranging from 2.5″ x 4.5″ to 10.5″ x 6.5″.
When selecting an ultra-portable sleeping bag liner, remember that doing so usually means sacrificing warmth and comfort.
Most campers are aware of the weight because who wants to lug around a hefty bag?
Silk liners, such as the Cocoon Mummy Liner, are the lightest, as shown in the material guide above, while down and insulated fiber liners are the heaviest.
Because added warmth and weight are typically inverse, you may need to consider a trade-off. For example, if you’re going camping in cold weather, it might be worth adding a few more ounces to gain a few degrees.
Liners shapes and fit
Sleeping bag liners come in a variety of shapes and sizes to meet the needs of every camper. We’ve outlined the advantages and disadvantages of each of the significant styles below.
The foot and shoulder areas of mummy-shaped liners are tapered. The major benefit of the tapered mummy style is that it conforms to your body’s shape, trapping more warmth with less fabric and thus being more efficient.
If you have a mummy-style sleeping bag, mummy liners are also a better option because the extra fabric in rectangular models can bunch up at the bottom and trap your feet.
The few disadvantages of mummy sleeping bag liners, according to some users, are that the tapered design can feel a little restrictive, especially if you move around a lot while sleeping.
Rectangular liners, overall, do not insulate as well as mummy-style models because they have more “dead space” for your body to warm up. But, on the bright side, this more spacious design provides a little more leg (and shoulder) room and is often preferred by more troubled sleepers.