We have about 11, which is way more than we need. If you're washing every 3 days, I reckon 5 or ideally 6 to allow for a couple of days' drying time if you don't tumble. For example, I find that a Bedbug or Weenotions Northern Lights can easily take a full two days in the winter, even with the heating on. Not a problem in summer
I have 4 HL BedBugs ... he currently wears these from his midnight feed til morning feed (between 6.30 - 7am) before that he is ok in a HO day fitted at the minute .. from his 8pm feed til I wake him at midnight.
Not sure what will happen when he starts sleeping longer .. hope the BB's are upto the job!
We dont have many, a wee notion night nappy, 2 huggles and 2 ellas house. We just got the ellas house and huggles a couple of days ago, the huggles work well but are mahoosive on the bum. Not tried the ellas house yet as they just dont look as if they are going to work!
We have a bedbug on order from the coop and i (sorry Sandy lol) really needs another WNNN as we love the one he has.