Sleeping Bag Liners

Lightweight and compact sleeping bag liners that wick moisture, add warmth, and keep your sleeping bag clean. Shop now at Sea to Summit!

Mummy (Drawcord) Compact || Reactor Sleeping Bag Liner
Mummy || Reactor Sleeping Bag Liner

Reactor Sleeping Bag Liner

€59,95-€69,95
Reactor Extreme Sleeping Bag Liner
Reactor Extreme Sleeping Bag Liner

Reactor Extreme Sleeping Bag Liner

€74,95-€79,95
Reactor Fleece Sleeping Bag Liner
Mummy Compact || Reactor Fleece Sleeping Bag Liner

Reactor Fleece Sleeping Bag Liner

€84,95-€89,95
Silk Blend Sleeping Bag Liner
Rectangular with Pillow Sleeve || Silk Blend Sleeping Bag Liner

Silk Blend Sleeping Bag Liner

€99,95-€109,95
Rectangular with Pillow Sleeve || Comfort Blend Sleeping Bag Liner
Rectangular || Comfort Blend Sleeping Bag Liner

Comfort Blend Sleeping Bag Liner

€39,95-€44,95
Mummy || Breeze Sleeping Bag Liner
Rectangular with Pillow Sleeve || Breeze Sleeping Bag Liner

Breeze Sleeping Bag Liner

€59,95-€74,95

Frequently Asked questions

What is the point of a sleeping bag liner?

A liner keeps your sleeping bag clean. It can also manage moisture when it's warm & humid (Breeze) or add warmth when it's cold (Reactor).

What's the difference between silk blend liners and other liners?

Silk blend sleeping bag liners are light, compact and designed for comfort - great for travel.

Breeze sleeping bag liners are stretchy, easy care and wick moisture very well.

Reactor Thermal sleeping bag liners are stretchy, easy care and add warmth to a sleeping bag.

Does the liner have to be the same size as your sleeping bag?

The sleeping bag liner does not have to be the same shape as the sleeping bag - our stretch knit liners has so much stretch, it fits any shape.

How do I store my sleeping bag liner?

No special care is needed for liner storage (except making sure the liner is dry beforehand).

Can you sleep in just a sleeping bag liner?

This answer isn't as straightforward as you think. To learn more about using a sleeping bag liner as a stand-alone sleeping bag, check out our blog: Using a Liner As a Sleeping Bag

Do liners make sleeping bags warmer? How much warmth is added?

All liners will add some warmth to a sleeping bag. How much is impossible to quantify - it depends on how well the sleeping bag retains warmth (not the same as its temperature rating), how well the sleeping mat insulates (not the same as its R-Value) and on external conditions.

WARM SLEEPING BAG LINERS IN PREMIUM QUALITY

Use one of our award-winning sleeping bag liners to boost warmth, wick sweat or simply keep your sleeping bag cleaner for longer. Like a clothing base layer, it can wick moisture or add warmth. A liner also keeps your sleeping bag clean and is easy to wash.

A sleeping liner can significantly raise your hygiene standards on longer trips—and stop dirt and grime from getting into the insulation of your sleeping bag and causing havoc. Hate washing your down bag or synthetic sleeping bag? Use a sleeping bag liner to get more time in between washes. 

Sleeping liners like our bestselling THERMOLITE Reactor Extreme are designed to add warmth to your sleep system in colder conditions. They’re a great way to extend the EN temperature range of your sleeping bag. In warm weather, you can easily use your sleeping bag liner as a stand-alone sleeping bag.

All Sea to Summit Reactor liners are made with high-quality THERMOLITE hollow core fibers that trap heat and offer extraordinary insulating properties. They vary in density depending on the liner and are therefore suitable for different temperatures. These ingenious advantages are what set THERMOLITE apart: 

  • Fantastic insulating properties
  • Extremely low weight
  • High stretch

SILK, COTTON & FLEECE SLEEPING BAG LINERS

Comfort is key when choosing a sleeping bag liner to complete your sleep system. Our sleeping bag liners come in a range of soft fabrics to suit everyone—from silk and cotton sleeping bag liners, to fleece and stretch-knit. 

They also come in a range of shapes, lengths, and sizes to suit every kind of camping trip or overseas holiday. Choose a mummy shaped liner to save weight on lightweight hikes or opt for a double silk travel liner for dodgy hostel beds. Whatever helps you sleep soundly. 

YOUR OFFICIAL STORE FOR SLEEPING BAG LINERS BY SEA TO SUMMIT

Our Outdoor Online Shop offers a wide range of sleeping bag liners – no matter if you are looking for a light travel sleeping bag or a warm liner for the winter. For even more comfort, you can also buy camping pillows and quilts here. 

Order the high-quality Sea to Summit sleeping bag liners online directly from us. Climate neutral and delivered in just a few days, you can already look forward to your desired products. We send your sleeping bag liner with a compact stuff sack to help you save a lot of space on your next hike thanks to the small pack size.