Cross-reference Chart for Pickup Truck Bed Size Dimensions. Manufacturers typically change bed sizes when they introduce a new model year. This used to be straightforward when there were only two options – short bed and a long bed. Choosing what size mattress to buy isn’t easy, especially considering the array of choices available. Today, you can count on finding California king, king, queen, full XL, full, twin XL, and twin mattresses widely manufactured and sold in stores. Mattress size is an individual preference, but understanding specific dimensions and your own expectations will help you narrow down the bed size Design the traditional bedroom of your dreams with the Angelina king panel bed. It’s loaded with architectural charm, including dentil trim and carved pilasters that are reminiscent of those found on Renaissance-style buildings. Sophisticated and streamlined, this Westlake 4-piece king platform bedroom set with storage bed is destined to satisfy. Its attractive design draws from the simplicity of Shaker style, while timeless details like framed, recessed drawer fronts and a cherry finish add touches of traditional charm. .