There are many different types of sleeping bag liners, but they all share a common goal. To keep outdoor lovers warm and comfortable when camping, backpacking, or just enjoying a night under the stars. The right sleeping bag liner depends on a variety of factors, including the average temperature in which the sleeping bag will be used, the shape of the sleeping bag and the user’s personal preference. The three basic sleeping bag shapes are the mummy, the rectangle, and the oval rectangle, which is a combination of the mummy and the standard rectangle shape. They also come for a single or a double sleeping bag. Naturally, this is the first thing that should be considered when choosing a liner, as it will provide more comfort if it matches the overall shape of the bag.
Next, you should compare the different brands and models available, starting with material. Although a silk sleeping bag liner is very lightweight, it is also a good insulator, and in warmer weather is breathable and absorbent. Some favorite types of silk sleeping bags include the Hammock Bliss or Grand Trunk Sleep Sack. Many people feel silk liners are more comfortable against the skin than nylon or cotton liners.
Some outdoor enthusiasts choose a fleece sleeping bag liner, as they are very soft and quick drying. The heavier models tend to be a bit bulkier, however, so if you are hiking you may wish to take this into consideration. On the other hand, they do provide a bit more warmth than other fabrics, adding approximately 12 degrees Fahrenheit. The Coleman Stratus sleeping bag liner is a favorite of those who prefer fleece, and works well with any sleeping bag.
The Slumberjack Merino Mummy sleeping bag liner is made of wool and provides exceptional warmth. Most people, who find their skin sensitive to wool, successfully avoid this discomfort by running the liner through several wash cycles to soften it.
Other options include the Sea to Summit Thermolite liner. This model is lightweight and can double as a sleeping bag for warmer weather. It is made up of fibers that offer warmth, but are also breathable.
Cotton liners are strong and durable, but not very compact. For humid conditions, synthetic liners are probably a better choice as they are moisture-wicking and a bit more breathable.
With the wide variety of sleeping bag liners available, there is something for everyone. It is wise to decide on a budget for the sleeping bag liner, and then comparison shop to arrive at the best decision.