3 bedrooms in our house, all are big enough to be doubles.
There is me and DH, two DSS's aged 10&13 and DS aged 4.
When we moved here (last year), the 3rd bedroom needed some work doing to it. We agreed that DSS's would have the 2nd bedroom and DS would stay with us until we finished the work that needed doing to what would become his bedroom.
We have now finished it, due to some of the works we did (namely knocking through into an old airing cupboard, it is now just slightly the bigger of the 2 children's rooms but not by any huge amount.
DH is now saying that we should swap the children over. I don't agree. I think it's fine for DS to have the bigger of the two rooms as he lives here all of the time and has a lot more "stuff" here.
DSS's stay 2 nights a week but, especially the eldest, there seems to be a lot more sleeping at friends houses etc. going on these days or spending more time out of the house rather than in.
AIBU? It's annoyed me because we always agreed this would be DS's room when the work was done, he's shared with us for the past year waiting for it to be done and I'd even started decorating it for him and don't want to faff about now for the sake of the extra size of what used to be a cupboard!