I checked at least a dozen mattress companies and the majority listed sizes as:
- CRIB 28-29" x 52-53"
- TWIN 39" x 75"
If the CBR Murphy Bed is 30" x 64" then it's width is not much more than a crib mattress (1-2") and it's length while 11-12" longer than a crib mattress, it is no where near a twin mattress length which is 11" longer than that. I think overall, if my rusty math is right, twins have 7 more square feet of space than the murphy. Can not be compared.
Bottom line all that doesn't matter - what does matter is comfort. The murphy bed has a 64" mattress = 5' 4" so I am assuming if you are anything over that your legs were hanging off the end. But it has to be at an angle since both ends have a dresser against them?
So you all had 5' 11" and 5' 6" bodies sleeping on 5' 4" with no way to even stretch out due to the dressers? That does not sound very comfortable to me unless you sleep bunched up all night long.
I think the murphys are great and a huge plus to the resort and families of 5 (which I am) but I would only put a child on them that is under 5' 4". Disney designed the murphy with small mattresses and the dressers at each end because they aren't planning on older kids or adults sleeping there. Whatever works for folks, it is fine for those that do that - but I would hate for a family with a teen to book it thinking it's like a twin bed when it's not a twin, not even close.