The 8 Best Sleeping Bag Liners in 2021 Reviewed
Want to upgrade your camping comfort in just one, simple step? Then you need to add a sleeping bag liner to your sleeping bag. Yes, getting an even better night’s sleep really can be that simple. A sleeping bag liner is, as you’ve probably already guessed, a liner designed to fit inside any regular sleeping bag. Extra plush, extra soft, and extra cushy: a liner can add a whole new dimension to your sleeping comfort, making it an essential for any avid camper.
In a hurry? Here’s the test winner after 10 hours of research:
And here’s an overview of the best sleeping bag liners on the market today:
To help you navigate your way towards the top-rated products on the market, we’ve created this handy ‘Best Sleeping Bag Liner’ overview. We’ve selected the best-value, high-quality sleeping bag liners to cocoon yourself in comfy style. These products are highly-rated in Amazon customer reviews and get a big thumbs up from other happy campers, and our Outdoor Command experts.
Discover the ‘Best Sleeping Bag Liner’ products below, and upgrade your sleeping comfort with one of these amazing camping essentials!
Best Sleeping Bag Liner – Overview
Cocoon Silk MummyLiner
The Cocoon Silk MummyLiner may feel delicate and smooth, but its construction is quite ingenious to withstand tougher outdoor scenarios. No need to be delicate with this delicate-looking design! The secret to this liner’s durability is its reinforced 100% ripstop silk material. The special reinforced woven material is less prone to ripping and tearing, ensuring you can enjoy its silky softness for many camping trips to come. An additional perk is that the ripstop silk liner is breathable, preventing your sleeping bag from getting stuffy.
A warm sleeping climate
Do note that this liner will add a bit of warmth (approximately +9.5°F) to your sleeping comfort, so if you prefer a cooler sleeping climate, you may want to consider a different option instead. That said, if you don’t mind a bit of extra warmth and snugness: this could be your luxurious match.
The silhouette of the Cocoon Silk Liner is a mummy-shape. This means its most compatible with mummy-shaped sleeping bags, though it can also comfortable slip-in a rectangular bag without issue. The Cocoon Silk MummyLiner also includes a handy stuff sack, making it easy to pack down to small dimensions to slot in a daypack/backpack. The lightweight liner only weighs 4.7 oz; ideal for backpacking and hiking.
The Friendly Swede Microfiber Sleeping Bag Liner
The Microfiber version of the Friendly Swede Travel liner is super soft, cozy, and ideal for those campers that want to add a bit of heat to their sleeping comfort. A word of warning: this microfiber design will add approximately 10°F in warmth, so if you want to keep your cool, this may not be the liner for you. However, for backpackers that do crave a bit of extra heat and softness, this affordable liner could be the quickest way to upgrade your sleeping comfort in style. The design comes with a side-opening zipper for easy access and is also machine-washable for a quick clean-up after usage.
The Friendly Swede Microfiber Sleeping Bag Liner is very generously sized and measures 41″ x 86″ (105 x 220cm) in dimensions, which includes a pillow pocket. Without the pillow pocket, the body compartment of the liner measures 66.5″ in length, which should be more than sufficient for most campers. The soft, microfiber liner weighs 17.6 oz. Compared to the previously listed Cocoon silk liner (4.7oz) that may seem quite hefty, but trust us: for a sleeping bag liner, 17.6oz is still relatively lightweight.
The budget-proof Friendly Swede Microfiber Sleeping Bag Liner includes a stuff sack. This stuff sack allows you to compress the liner to extra compact dimensions, allowing it to easily slot in a daypack. The stuff sack also comes with an attached carabiner, allowing you to clip it to the exterior of your pack if you wish to save on packing space. The sleeping liner is also backed by the Friendly Swede’s Lifetime Warranty, ensuring that if you encounter any manufacturing defects, the brand will find a suitable solution. Making it a risk-free purchase in soft, microfiber sleeping comfort.
Sea to Summit Adaptor COOLMAX Liner
COOLMAX® is a special form of polyester with special moisture-wicking properties. The fabric cleverly adapts your sleeping climate based on temperatures and conditions. The Sea to Summit Adaptor COOLMAX® Liner provides additional warmth when required in cooler conditions and wicks moisture in hot and humid conditions. Keeping you comfortable, dry, and snug at all types. This quick-drying, moisture-wicking, machine-washable fabric cleverly helps regulate your body temperature, enabling you to get a great night’s sleep, without the interior of your sleeping bag getting sweaty in warm weather or chilly in cold weather conditions.
This versatile, innovative COOLMAX® sleeping bag liner is available in two variations: a Mummy edition (as listed in this overview), and a classic Traveller edition (envelope-shaped). The mummy-shaped Sea to Summit Adaptor COOLMAX® Liner measures 82 inches (210 cm) in length and weighs just 8.7 oz. The Traveller-style Summit Adaptor COOLMAX® Liner measures 89 inches and weighs 11.5 oz. If you’re a taller sleeper, consider the Traveller-option for extra space. That said, the Mummy-version comes with additional perks to keep you warm at night, such as a drawcord hood that cinches around the head to help keep warmth in, and prevent cold spots. The mummy-shape sleeping liner also comes with a special 3D foot box, ensuring that even though the design is tapered, your feet have plenty of space to flop around at night.
The Sea to Summit Adaptor COOLMAX® liners all include a lightweight stuff sack, allowing you to compress them down to compact, backpack-friendly dimensions. Other clever design-elements are a contrasting color along the top edge of the back, making it easy to find the opening at first glance.
Sea to Summit Adaptor Coolmax with Insect Shield Liner
The liner has the same moisture-wicking properties as the original Sea to Summit Adaptor COOLMAX® liner, combined with a special insect-repellent coating to keep you safe from pesky mosquitos and annoying bugs. Simply slip the liner into your sleeping bag, draw the drawstring hood tightly around the face, and voila: you’ve ready for a night of unbothered sleep.
Moisture-wicking COOLMAX polyester
Just as the original, the Sea to Summit Adaptor COOLMAX® liner with Insect Shield technology is made of moisture-wicking polyester, that quickly adapts your sleeping climate to different temperatures. The liner keeps you warm on colder nights and wicks away sweat and stuffiness on hot and humid days: coming to your aid in any kind of outdoor scenario.
The mummy-style Summit COOLMAX® liner with Insect Shield technology has a tapered silhouette and measures 6 ft 6 in x 28 inches in dimension. It weighs 8.6 oz and comes with a stuff sack included for easy storage and portability. If bugs are a concern, the Sea to Summit Adaptor COOLMAX® liner with Insect Shield technology truly puts your worries to rest.
Sea to Summit Thermolite Reactor Liner
The previously listed Sea to Summit Adaptor COOLMAX® liner uses special moisture-wicking COOLMAX fabric to keep you cool. In contrast, the Sea to Summit Thermolite Reactor Liner uses quality Thermolite fabric to create an insulation extra layer of sleeping comfort. This vivid orange fabric is known for its outstanding insulating properties and heat retention.
Drawcord hood to eliminate cold spots
The Sea to Summit Thermolite Reactor Liner has a mummy-shape, tapered silhouette and comes with a drawcord hood. Cinching the hood closed allows you to trap even more heat inside the liner, and prevent cold spots around the head area. The stretchy liner is roomy enough to move around at night, whilst the spacious foot box offers ample space for your feet – even when wearing bulky thermal socks. The included stuff sack is water-resistant and allows you to pack the Sea to Summit Thermolite Reactor Liner down to very compact dimensions.
If you want added warmth, comfort, and snugness in cold weather conditions: you’ll simply love the Sea to Summit Thermolite mummy sleeping bag liner.
ALPS Mountaineering Razor Fleece Liner
The Razor fleece liner is a highly-rated favorite in the sleeping bag liner selection on Amazon. The design scores high Amazon reviews and is praised for its softness, warmth, and performance. This extra layer of sleeping comfort is constructed to the highest quality standards, using heavy-duty zippers, durable 210T polyester shell, and soft and plush fleece interior lining.
We also give the ALPS Mountaineering Razor Lightweight Sleeping Bag Liner top marks for its portability. The included stuff sack allows you to pack down the liner to approximately 13″ x 6″, but the stuff sack can be further compressed down to 7″ x 6″. Ideal for backpackers who are looking for a space-saving solution that easily slots in their pack, without weighing them down.
Though consumers report variations in the temperature rating, the consensus on Amazon is that the ALPS Mountaineering Razor Lightweight Sleeping Bag Liner adds about 10ºF of sleeping warmth to a sleeping bag. The roomy Razor is one of the best backpacking sleeping liners due to its compact dimensions, but it may not be your perfect match if you prefer a cooler sleeping climate. In that case, we’d recommend you to consider the non-fleece lined Summit COOLMAX by Alps Mountaineering instead.
Picking a winner is nearly impossible, as all the products listed in this Best Sleeping Bag Liner overview tick the boxes. Each item is highly-rated, value-for-money, and adds additional comfort to your camping experience. Which one is ‘the best’ depends on where and when you plan to use the sleeping bag liner. And what type of sleeping bag you already own. Some designs, such as the Sea to Summit Thermolite, add extra warmth – ideal for cold weather camping. Whilst others, such as the Cocoon silk liner, are more aimed at comfort and hygiene, adding a silky softness to your sleeping pleasure. Rest assured: you can’t make a bad choice, only a choice that doesn’t quite fit your personal needs. So, carefully think about what features are most important to you, then make a well-informed decision about the liner.
Warmth: go for the Thermolite liner. Moisture-wicking? Choose the COOLMAX by Sea to Summit. Budget-proof? Then you’ll love the Friendly Swede’s liner. We’re confident there’s a perfect match for every preference in our overview!
If we could only buy one of the products in this overview, we’d spend our money on the original Sea to Summit Adaptor COOLMAX Liner. The reasoning? It’s the most versatile out of all. The liner’s COOLMAX fabric cleverly adapts your sleeping climate based on temperatures and conditions. For example, it provides additional warmth when required in cooler conditions and wicks moisture in hot and humid conditions. The result: a good night’s rest, no matter where or when you camp. That said, for winter camping, it may not be warm enough, but for 3-season usage, it’s without a doubt a top contender.
Made by an expert brand in outdoor gear, the Sea to Summit Adaptor COOLMAX Liner also adheres to the highest quality standards and comes with a handy stuff sack for extra portability. If you want a liner that can tackle nearly any type of camping scenario, and is compatible with nearly all kinds of sleeping bags: this will make you a happy camper.