We have a Travasack that we resurrected after getting rid of large 5th wheel and going to a MBS Sprinter 2400R and "folding" bed. We use the QS Travasack and just spread it over the top of the mattress / cover. Works great, easy to put away, and is warm with summer and winter side.. I assume it is similar to the RV Superbag. Trying to make a bed in these units is ridiculous as you have to be in the bed to make it - not going to happen.
2017 Tiffin Allegro RED 33 AA
2020 JLUR
Roadmaster Baseplate
Sterling AT Tow Bar
Demco Air Force One Brake System