The Mummy Microfibre Sleeping Bag Liner is an essential piece of travel equipment, which prolongs the life of your sleeping bag. The Mummy Microfibre Sleeping Bag Liner is ideally suitable for Mummy sleeping bags with the narrow end, & adds extra warmth inside your sleeping bag.; Cleaner & hygienic option whilst travelling; The Mummy Microfibre Sleeping Bag Liner is ideally suitable for Mummy sleeping bags with the narrow end. Taking the option to use a sleeping bag liner is a much cleaner & hygienic option especially if you are sleeping in your sleeping bag for a longer period of time, or are using a sleeping bag that isn’t yours. The Mummy Microfibre Sleeping Bag Liner is an useful piece of camping equipment especially if you camp frequently.; Neat & compact; The Mummy Microfibre Sleeping Bag is lightweight & comes in a packaway drawstring bag to carry with ease.