Double this and ensure the material is all one piece. Determine the size based on the zipped size of your sleeping bag. Below, you will learn how to sew sleeping bag liner with little time and effort. Despite high quality liners with excellent thermal properties costing between $20 and $60, identical fabric can be purchased separately at a fraction of the price. If you make a purchase after clicking on a link I may earn a small commission at no extra cost to you.Ī good sleeping bag liner can add between 5 and 10 degrees of warmth.
