This has confused me for a while now. Does 'Kids stay free' mean that I can pack in up to 4 kids in any room, regardless of the persons per room limit listed on the room description? Or does it mean that I just don't pay any applicable extra adult fees but still have to stay in the ppr maximum? Does this policy apply to HIX as well? (I've seen some HIX hotel sites show it, didn't know if it is a general rule). Any differences outside of U.S.? I know European hotels are a bit more stingy about the ppr limits, where in the US I have no concerns bringing 2A + 3C to a 2 queen room.