I'm kind of assuming they're the same size as in the other rooms, in which cast they're small. They're the square kind, like 2'x2' . I noticed because when we stayed there I was glad I hadn't ordered a gallon of milk. I was able to fit a 1/2 gallon of milk and a 1/2 gallon of juice in there, lying down... plus there was room for yogurt, cheese and maybe 6-8 bottles of water stuffed into the leftover spaces.
You could also call and ask; maybe the ones in the kid's suites are bigger? It would be nice.