The only thing is, though, about the family rooms at ASMu is that the fold out beds aren't that comfy. When you're talking about kids/teens, no biggie but I wouldn't put grandma on a fold out couch or chair. Especially not for more than one night. Your party is a bit different than a family of 5. You aren't talking parents and 3 kids. You've got 4 adults and 1 child. Then add in ages and body condition( let's be real. You aren't in your 20s anymore lol). For your daughter to be in her 20s, you and your husband aren't in your 30s
If you got two rooms, you and your husband can have a bed, ggma has her own bed, and daughter and grandson have beds. Or do a house out in town.