if i where to put one rimworld square in to measurements then i would have to say that a 4x4 bedroom is enough, so my proposition is that someone could mod the game to have the cramped room debuff to only appearer when the room is small, small like 2x3 or 3x3
the second way it could be done is if there are 2 types of cramped like low level cramped is liek 3x3 or 2x3 to 2x2,1x1,1x2 and then the slightly cramped room 3x3 to 3x4 and no cramped with 4x4 to 5x4 and and a buff for "Spacious room" for 5x5+
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