How often should you clean your doona?

[Astrid]

Every time a child or pet pees on it.

Same

Ours used to fit in our old washing machine, but now we have to take ours to be drycleaned. In between I will sometimes throw them on the washing line on a sunny breezy day.

[Sopdet]

End of season when I change between my doona and my comforter it gets cleaned (doona at end of winter, comforter at end of summer). I regularly air them and the mattress protector.