Alaskan King Size Bed 2025 Size. Alaskan king bed is the biggest bed size amongst all commercially made beds, which means an alaskan king size bed happens to dwarf all the rest of the existing bed sizes. The alaskan king mattress offers unmatched space and comfort, making it the perfect choice for those who need extra room.
Alaskan king beds typically have. An alaskan king bed is a square mattress that measures a generous 108 inches by 108 inches.