Standard stores rarely carry these; they are typically sold by specialized online retailers like Alaskan King Bed Company or Mattress Insider . Mattress Size Dimensions (Inches) 144" x 84" (12' wide) Maximum Width : Fits a family of 4+ and pets. Alaskan King 108" x 108" (9' x 9') Maximum Length : Ideal for tall sleepers and co-sleeping. Alberta King 96" x 96" (8' x 8') A middle ground for those wanting a huge square bed. Texas King Extra Tall Sleepers : Longer than it is wide. Wyoming King 84" x 84" (7' x 7') Smallest "oversized" bed; wider than a standard king. 2. Buying Guide: Crucial Considerations

Buying a "mega" mattress involves more than just a higher price tag—which can range from for high-end models like the Grand Royale Biggest Bed Size: Family, Alberta, Wyoming, Texas, & More

The biggest mattress you can buy depends on whether you prioritize or length , but the Family Bed XL and the Alaskan King are the top contenders for the title of largest overall. 1. The Heavyweights: Oversized Mattresses