Bed-covers I can wash

[cakedup]

I'm looking for bed-covers/throws that can fit in the washing machine so I don't have the added expense and palava of having to wash them at the laundrette. Even ds' single bed has a heavy duty cover that won't fit.

I mean they fit if I cram them in but it leaves no space at all for them to wash properly.

Any ideas? Nothing too 'light' so that they don't stay in place at all when we sit on the bed.