Most of the deluxes sleep five as a standard or have rooms that sleep five in a different category. We stayed in a "family" room at AKL that had bunks plus a NICE daybed. Most rooms at AKL only sleep four. The room does get a little more crowded and you have a single bathroom.
You should know that DVC studios only sleep four and that the rules on a DVC one bedroom are four, but that DVC currently lets you sleep a fifth in there - they will not provide bedding for the fifth. By the written capacity, you need a two bedroom to sleep five at a DVC resort, which are very nice, but can be a little point intensive. However, with a two bedroom, you do get two bathrooms, which can be nice with five.