Updated on November 19, 2020

Do you ever wonder how you can make your sleeping bag warmer? A sleeping bag liner is your solution. These liners are similar to the sheets used in your bed, in that they provide a level of protection and warmth. They also help keep your bag cleaner for longer. But do you know what’s the best sleeping bag liner for you? 

One of our big goals here at The Adventure Junkies is to make your life easier when it comes to choosing outdoor gear. In this article, we’ll walk you through what you need to consider when it comes to choosing a sleeping bag liner and show you our selection of the best models of the year.

For more of our top backpacking gear recommendations, check out the Best Backpacking Sleeping Bags

 

Quick Answer - The Best Sleeping Bag Liners

  1. Sea to Summit Reactor Extreme
  2. ALPS Mountaineering Mummy
  3. Sea to Summit Stretch Silk
  4. Sea to Summit Coolmax
  5. The Friendly Swede
  6. TETON Mammoth Sports
  7. Bundle Monster Microfiber Fleece

 

Comparison Table - Best Sleeping Bag Liner

PictureNameLengthWidthMaterialWeightPriceRating
Sea to Summit Reactor Extreme84 in36 inThermolite14.0 oz$$$$4.2
ALPS Mountaineering MummyALPS Mountaineering Mummy86 in32 inMicroFiber11.0 oz$$3.8
Sea to Summit Stretch SilkSea to Summit Stretch Silk73 in36 inSilk6.1 oz$$$$4.4
Sea to Summit CoolmaxSea to Summit Coolmax84 in36 inCoolmax8.6 oz$$$4.4
The Friendly Swede86 in41 inPolyester6.4 oz$4.6
TETON Mammoth Sports91 in58 inCotton18.4 oz$$$3.9
Bundle Monster Microfiber Fleece69 in29 inMicrofiber fleece22.4 oz$$4.4
PictureNameLengthWidthMaterialWeightPriceRating

Reviews - The Best Liners for Sleeping Bags

Sea to Summit Reactor Extreme

Specs
  • Length: 84 in
  • Weight: 14.0 oz
  • Material: Thermolite
  • Width: 36 in
Features
  • Synthetic
  • Mummy shape with foot box
  • Includes stuff sack

BEST FOR: BACKPACKERS NEEDING A LIGHTWEIGHT LINER

PROS: Provides up to 25 degrees F of warmth, breathable

CONS: Not versatile – too warm for summer camping

ALPS Mountaineering Mummy

Specs
  • Length: 86 in
  • Weight: 11.0 oz
  • Material: MicroFiber
  • Width: 32 in
Features
  • Mummy shape
  • Easy to clean
  • Stuff sack included
ALPS Mountaineering Mummy

BEST FOR: PREVENTING BUG BITES

PROS: Mummy shape for tight fit, protects against dirt

CONS: Not comfortable for restless sleepers, heavier than other liners

Sea to Summit Stretch Silk

Specs
  • Length: 73 in
  • Weight: 6.1 oz
  • Material: Silk
  • Width: 36 in
Features
  • Machine washable
  • Comfortable blend of silk and cotton
  • Double folded seams
  • Included stuff sack
Sea to Summit Stretch Silk

BEST FOR: WARM WEATHER HIKING

PROS: Compact, breathable, high quality, comfortable

CONS: Expensive compared to other liners

Sea to Summit Coolmax

Specs
  • Length: 84 in
  • Weight: 8.6 oz
  • Material: Coolmax
  • Width: 36 in
Features
  • CoolMax polyester provides for moisture wicking
  • Pillow insert
  • Included stuff sack
Sea to Summit Coolmax

BEST FOR: HUMID AND BUGGY CLIMATES

PROS: Repels insects, odorless insect protection, durable material

CONS: Not suitable for cold weather

The Friendly Swede

Specs
  • Length: 86 in
  • Weight: 6.4 oz
  • Material: Polyester
  • Width: 41 in
Features
  • Includes pillow pocket
  • Silk texture
  • Side opening
  • Velcro or zipper closure

BEST FOR: BACKPACKERS ON A BUDGET

PROS: Has extra space, velcro makes getting in easy

CONS: Synthetic fiber isn’t as comfortable as silk

TETON Mammoth Sports

Specs
  • Length: 91 in
  • Weight: 18.4 oz
  • Material: Cotton
  • Width: 58 in
Features
  • Machine washable
  • Versatile for camping or traveling
  • Split sides for easy entry/exit

BEST FOR: TALLER BACKPACKERS

PROS: Adds 10 degrees F of warmth, extra long and wide

CONS: Takes up large amount of space when folded

Bundle Monster Microfiber Fleece

Specs
  • Length: 69 in
  • Weight: 22.4 oz
  • Material: Microfiber fleece
  • Width: 29 in
Features
  • Versatile for camping or traveling
  • Zippered closure

BEST FOR: COLD CLIMATES

PROS: Hypoallergenic material, provides added warmth

CONS: Too warm for summer weather

 

 

HOW TO CHOOSE THE BEST SLEEPING BAG LINERS

CLIMATE YOU’LL BE BACKPACKING IN

Sleeping bag liners come in a few different types of materials. You’ll need to think about what climate you plan to camp in to choose the best one for you.

Silk liners are lightweight, which great for summer conditions but not if you’re looking for added warmth.

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.

 

FIT

Sleeping bag liners come in several different shapes. Some are specifically designed to accommodate those who aren’t of average height. They are shorter or longer than usual to make sure the liner can fit properly in the length and width of their sleeping bag. These are all considerations to keep in mind when choosing the right sleeping bag liner for you. 

A mummy liner will keep you extra warm because it forms to the shape of your body, trapping heat. The disadvantage of this fit is it can be constricting. If you tend to move a lot in your sleep you’ll want to consider a rectangular shape instead.

 

MATERIAL OF LINER

Some materials are lighter in weight, such as silk and synthetic. An advantage of this is they’ll take up less space in your backpack since they’re more compact. They also tend to be more breathable, which is ideal in hotter weather.

Heavier materials such as fleece and insulated liners will take up more space and weigh more overall. The advantage of this type of liner is they are warm. Some of them are also quick-drying and moisture-wicking so you won’t have a soggy bag the next evening.

 

COMPRESSIBILITY

If your backpack is packed to the brim with equipment, you won’t want a heavy liner. Since the thick material provides extra protection against the cold, they tend to take up a good amount of space, even when folded. A lightweight liner will fold up much smaller to fit in your pack without having to rearrange everything.

 

 

 

ADVANCED FEATURES

BUG-REPELLANT LINERS

If you’re going to a warm, humid climate full of mosquitos or other insects, consider buying a liner specifically to repel bugs. They’re made with an odorless insect shield repellent to keep bugs at bay.

 

PILLOW CASE LINERS

Some sleeping bag liners extend to include a liner for the pillow as well. These protect your pillow from dirt so you have to clean it less. They’re ideal for trips where you won’t be able to shower for extended periods of time.

READ MORE

For more of our top hiking & backpacking gear recommendations, check out these popular articles:

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