We have a sultan double mattress for sale. Only used a couple of times. Selling due to changing one of the rooms to a twin room.
Original cost around 200 Euros, would be happy to sell for 120 Euros or nearest offer.
Out next Tuesday for a month if anyone is interested, we stay on Jardine 1.
Here is a link to a similar mattress.
http://www.ikea.com/gb/en/search/?query=sultan+mattress&pageNumber=3
Regards