Not the covers but the actual quilts?
Mind wandering whilst doing household drudgery ...
Changing DDs sheets and thinking to myself I will never buy cheap duvets again - DD2's is 4 years old -wasn't a 'value' but wasn't expensive and it is gone all lumpy...bit annoying really ...
Then looking at DD1s - its getting a bit thin now but not too bad - and when I bought that it would have been as cheap as I could get at the time (short of cash then) - bit blue stained from a duvet cover she once had but other wise... and gosh it must be ten years old ...
Then it dawned on me - although I get mine and DPs pillows and kingsize duvets (we have two - DP makes a nest in bed this stops arguments about duvet hogging) washed about every year -18 months - IIRC I have never ever washed DDs - so for DD1 that's never in 10 years!
...
(Pillows have protectors on that get washed - and they had new pillows a year or so ago - bought 4 cheapish ones for them & DP & I and they went flat within a month or so - now DDs have two of the flat ones in one pillow case!)
(before anyone says anything - they do both need new duvets - but I have inherited (good condition slumberdown) ones with a house I bought, left them there for workmen staying over and they got dusty and when I get round to it I get them washed and they can have those...)