Before you make that trip to IKEA, you should know...
IKEA Futons, Frames & Covers for sale | eBay
Discontinued IKEA Furniture – Comfortly
Vogue futon sofa bed
Amazon.com: The Flax Polyester Beddinge Lovas Sofa Bed Cover Replacement is Compatible for IKEA Beddinge Sleeper, A Quality Futon Slipcover Replacement (Darker Gray Flax) : Home & Kitchen