Most Common Mattress Sizes [Dimensions]
Twin W:39" x L: 74 in
Twin XL W:39" x L: 80 in
Kamp-Rite Double W:50" x L: 77 in Self Inflating Pad
Full W:54" x L: 74 in
Queen W:60" x L: 80 in
King W:76" x L: 80 in
California King W:72" x L: 84 in
Crib W:~ 27 in x 51.5 in.
PookKing W:78" [ 6' 6" ] x L: 84 [ 7' ]
PookQueen W:70" [ 5' 9" ] x L: 84 [ 7' ] 77 inches long and 50 inches wide
Truck Flat ~ Area 74 inches long and 64 inches wide
King 80"L x 76"W x 12" [6' 8" L x 6' 4" W]
CalKing 84"L x 72"W x 12" [7' L x 6' W ]
Queen 80"L x 60"W x 12" [6' 8" L x 5' W ]

US twin bed dimensions and clearance 39" x 75" (bed) 99" x 105" (min clearance) 111" x 111" (luxurious clearance) Against the wall 69" x 105" (min clearance) 75" x 111" (better clearance)
US double / full bed dimensions and clearances 54" x 75" (bed) 114" x 105" (min clearance) 126" x 111" (luxurious clearance) Against the wall 84" x 105" (min clearance) 90" x 111" (better clearance)
US queen bed dimensions and clearances 60" x 80" (bed) 120" x 110" (min clearance) 132" x 116" (luxurious clearance) US king bed dimensions and clearances 76" x 80" (bed) 136" x 110" (min clearance) 148" x 116" (luxurious clearance)
US California King bed dimensions and clearances 72" x 84" (bed) 132" x 114" (min clearance) 144" x 120" (better clearance)