The Cumulus LT sleeping mat is made to maximise warmth and comfort when you’re camping in a tent or bivvy. Filled with Thermolite® polyester insulation (R5 rating), the sleeping mat allows for warm air convection, which helps protect you from the cold ground on chilly nights. The mat is made from 40D ripstop nylon and weighs only 660g (730g with the pack/pump). This makes it one of the most durable and lightweight sleeping mats on the market. It packs down to an ultra-compact size so you don’t have to think twice about chucking it in the pack. It’s quick and easy to inflate the mat using the innovative pump sack, which is based on Bernoulli’s principle. Equipped with a built-in pillow, the Cumulus LT Sleeping Mat provides a touch of luxury on those rugged wilderness adventures.