Twin Cabbunk for sale. Fits Ram Promaster or Mercedes vans (both front seats must swivel). Two cots hang over seats; no permanent attachments needed for van. Rolls up and fits in a sleeve approximately 4" diameter x 63" long, which can be stored on the adult bed or directly behind the front seats. This is a great system, used it for two years with the grandkids, one of whom has now outgrown it. Very lightly used. $300 plus shipping. Learn more at cabbunk.co.uk.