Our 2013 25FB International received an 8" Rocky Mountain Mattress (cost $635 on 12DEC2012) to replace the stock 7" mattress. We had ordered the Airstream store 600 thread cotton custom sheets for the stock mattress, but they fit the 8" mattress perfectly and would have been really loose on the factory 7" mattress.
Before the trailer arrived, we had the 8" Rocky Mountain Mattresses made for the twin beds in our 2014 Classic (cost was $1,158 for both in June of 2013) along with the Airstream 600 thread sheets. If we knew then what we know now after the trailer arrived, the mattresses could have been perhaps five inches longer to better fit the space in the Classic and thicker. We might even splurge in the future and go to the 10" thick mattress the next time.
We ordered the 12" Rocky Mountain mattress (cost $1,825 on 15 JUN 2015 included two sets of custom sheets, pillow cases and bed pad) for the king bed at home and should have ordered the 14" thick one as I miss-measured the height needed. Their custom sheets are fitted on the bottom and also can have a fitted pocket for the foot of the top sheet so it does not pull out at night.
We have a custom shaped 10" Rocky Mountain mattress (cost $1,825 on 15 JUN 2015 including two sets of 600 thread cotton custom snapped sheets, pillow cases, bed pad and pillows) still rolled up in the home garage and will put it and the sheets into the 2015 23D International Serenity trailer hopefully next week when all the modifications are completed and I can pick it up in Paradise, TX and tow it home.
You can call the Airstream factory (phone 937-596-6111) and ask for customer service to send the two drawings for the twin bed mattress for your specific trailer. They will needed the last six digits of the VIN number to find the correct details. There is a large overview drawing and a detailed measurement drawing for the large radius.
Contact Andrew Melchoir (1-866-733-3132) for questions and a quote concerning Rocky Mountain Mattress products and their linens made to fit the weird Airstream shapes.
WBCCI Life Member 5123, AIR 70341, 4CU, WD9EMC
TV - 2012 Dodge 2500 4x4 Cummins HO, automatic, Centramatics, Kelderman level ride airbag suspension, bed shell
2014 31' Classic model 30 twin beds, 50 amp service, 900 watt solar system, Centramatics, Dill TPMS, disc brakes, 16" tires & wheels