@mynameistillian I've repeatedly washed mine (normal color detergent, 40 celsius, high-speed spin cycle) and it's been no problem. It'll need a lot of time to dry properly and even longer to fluff up properly again, but eventually it'll be back to normal.
@mynameistillian (That is, assuming that they haven't changed the design/materials over time, as IKEA is sometimes prone to doing)