Sleeping bag liners are a must-have for any backpacking trip.
A good liner will keep your sleeping bag clean, prolonging it’s life. Depending on the material used, it can also increase the temperature rating of your bag by an extra 5-15F, keeping you warm on those chilly nights.
Ever since I found myself in a "luxury hotel" in Delhi 25 years ago, I've never traveled without one.
Sea to Summit Thermolite Reactor Fleece - for added warmth and comfort
Sea to Summit Thermolite Reactor Extreme - for added warmth and bit less bulk
Sleeping Bag Liners that add Warmth - Reviews
Sleeping Bag Liners for Hygiene
Why Use a Sleeping Bag Liner?
Different Types of Sleeping Bag Liners
Liners come in a variety of materials:
Good sleeping bag liners come in a variety of shapes. Mummy-shape to fit your sleeping bag, rectangular shaped for sleeping in hostels or traditional sleeping bags.
Others are made of a stretchy material so that you don’t get tangled up in it. Some have zips or velcro closures or are simply a tube.
Some liners will have a space for a pillow which is mostly for use in hostels and hotels of dubious cleanliness. Tube shapes can be a bit difficult to get in and out of for calls of nature during the night.
If you are unsure of whether your sleeping bag is going to be warm enough then the Sea to Summit Thermolite Reactor Fleece will add warmth and comfort.
If you don't want the added bulk of the fleece one, but still want some warmth then the Sea to Summit Thermolite Reactor Extreme is well worth a look.