Required a Queen size to fit the master. The guest required a king and even this was not big enough due to the weird bow shape/fitted design. Luckily the waste after the cut was big enough to glue the missing piece into place creating an identically sized copy of the original. Used a spray adhesive made for foam which worked perfectly. The bow mattress (guest) also had angles on both side to fit the hull shape so this one was trickier than the master.
Laid the old mattress on top of the new and traced out the pattern with a marker. Checked out youtube and found the recommended way of cutting the foam was with an electric carving knife which also worked well. The Morgedal mattress we chose has a zipped on cover which was removed, modified/sewn to fit the new cut mattress shape. https://www.ikea.com/ca/en/catalog/products/40272211/
Picture of the Guest mattress which was the complicated one, Master is the same but a different shape. Very pleased with the results.
