Mattress size (width × length)

N. America

Single
Twin (USA)

39in × 75in
0.99 m × 1.91 m

Double/full

54in × 75in
1.37 m × 1.91 m

Queen

60in × 80in
1.52 m × 2.03 m

King

76in × 80in
1.93 m × 2.03 m