Funnily enough i was just thinking about this today as i was moving all our King linen from the hall cupboard in to our robe. I have 6 doona sets and i think 7 sheets for out bed as i went though a phase of buying 1000tc sets from COTD and those outlet sites. I retired two sheets the elastic has gone on to the 'dust sheet' box.
I think i need more for the girls beds as i really struggled when sickness went through recently. 3 sheets for DD1s single,, and 2 for DD2s KS and 4 doona covers they share. One of the doona covers neither of them will have a bar of because the butterflys are scary *sigh*

I recently bought the girls 2 bath sheets each from Ikea (orange for one, blue for the other), so i know whos is whos and there is one each in the bathroom and there are no arguments.
There are probably a dozen other towels in the laundry, but DH and I just did our EnSuite so i'll treat us to some new ones and cull the others for my birth box.