10 Best Sleeping Bag Liners UK 2024 | Trespass, Quechua and More

This white silk liner from Forclaz is designed for the best in comfort and insulation. Although it provides additional warmth against the chill, it's still breathable, so it won't be too intense for warmer weather. 

The lightest on our list, weighing just 110 g, it will be easy to travel with and folds down to a small size. most importantly, it manages to remain reasonably priced, especially considering all of these sought-after features!

Trespass is a well-respected brand, and their camping and outdoor gear is always top quality. This mummy bag liner is no exception, with its polyester-cotton material providing great insulation and durability. 

It comes in adult and child sizes, and the moisture-wicking fabric will prevent overheating while protecting your back while you sleep. Make sure to store it inside the accompanying travel sac when not in use, for fuss-free transportation. 

If you're shopping on a budget, look no further than Quechua's polyester sleeping bag liner. It's the cheapest on our list, without sacrificing quality, and is breathable even in humid conditions. 

We like that it's relatively lightweight. Better yet, the rectangular shape makes it versatile enough to use in sleeping bags or as a protective liner for bedding when visiting hotels and hostels. 

The material of the liner is soft and breathable, and it will dry much faster than denser fabrics. As well as protecting the sleeping bag, the sewn-in pillow compartment also allows you to protect your camping pillow and avoid annoying slips during the night.

The insulation is thicker in the foot and torso sections, to combat leading areas of heat loss in the body. In warmer weather, it can even be used as a standalone bag, retaining essential heat, without getting too hot. 

It's relatively expensive, so it won't be ideal if you're shopping on a budget. However, if you're prone to a lot of movement in your sleep, the added room may be worth the investment.

When shopping for a cotton rectangular liner, there are other options on the market that are better value for money. That said, if you need one of a specific size, this will be the most likely to fit your specifications. 

This liner is insulated with 89% Merino wool for greater thermal insulation and comfort. An eco-friendlier choice, Forclaz has made a climate promise to harvest only the necessary materials for this liner, with a significantly reduced CO2 impact compared to standard production. 

It's the most expensive on our list, so it won't be ideal for the casual summertime camper. Still, if you're committed to camping out in the toughest of temperatures, you can't get much better than this!

If you want cotton, this is the best value you'll get. It'll resist wear and tear for a long time, thanks to the durable material, and the rectangular shape is suitable for use alone or inside a sleeping bag. 

It's the heaviest on our list at 490 g, so if you often hike with your gear or travel on foot, you might prefer a lighter option. For occasional trips and travel by car, however, the weight shouldn't be much of an issue. 

Unfortunately, the brand has not confirmed the exact weight of the liner, so it may not be suitable if you're packing light. Bearing in mind that fleece is the heaviest fabric option, it certainly won't be compact.