I have removed the 7 cm mattress from my Oztrail Mitchell double swag and stored it under one of my beds. I did this primarily as the swag with mattress is quite large and my garage is chockers with car, camper trailer, kayak, fishing tackle, cupboards , essential tools/toys etc. Without the mattress, the swag canvas folds up small and is much more flexible making storage easier. Just need to remember the mattress when going camping.....