The sleeping bag liner is especially designed for many of the Bedwetting Store’s patrons.

Best for camping, sleepovers, outdoor activities when you have children with you, the sleeping bag liner can be easily placed inside a sleeping bag. It stops leakage onto the surface and it is especially useful if your child is lying in the outdoor grounds, as it prevents moisture from seeping through inside.

Features, as per product specifications:

via the Bedwetting Store