Respironics now has its own hose cover. The insulated tubing is made of very soft fleece material on the outside and a nylon material on the inside. The tubing slides over a 6 foot CPAP hose and fastens with a nylon cord and Velcro. For those using a heated humidifier, the tube insulates the hose from the cooler ambient room air, reducing condensation within the hose. The fleece material is very soft and provides a comfortable surface to the hose.