Bed Sizes Bigger Than King: Alaskan, Texas and Wyoming Kings

A standard king is the largest bed most stores carry, but it is far from the largest bed you can buy. Bed sizes bigger than king include the Wyoming king at 84 by 84 inches, the Texas king at 80 by 98 inches and the Alaskan king at a full 108 by 108 inches, plus family beds that run 10 to 12 feet wide. These oversized beds solve real problems for co-sleeping families, very tall sleepers and couples who share the bed with large dogs.

They also bring real headaches. Sheets are hard to find, frames are usually custom or special order, mattresses rarely fit through a standard door in one piece, and the room has to be large enough to walk around the bed. Before you commit, it helps to compare each size honestly.

Here are the dimensions, the floor space each needs, and the practical issues that come with buying the largest mattress size you can fit.

Bed Sizes Bigger Than King Compared

For reference, a standard king is 76 by 80 inches and a California king is 72 by 84 inches. Every size listed here beats both in at least one direction.

Exact bed sizes bigger than king vary between makers, especially for family beds, so always confirm the actual measurements before ordering frames or bedding.

Wyoming King: The Square Upgrade

The Wyoming king measures 84 by 84 inches, which makes it 8 inches wider and 4 inches longer than a standard king. It is a good bed size bigger than California king in both directions, and its square shape gives each partner about 42 inches of width, compared with 38 on a king.

This is the most practical of the oversized options. It fits in rooms that can already handle a king with a little breathing room, and it does not demand a huge bedroom. The catch is bedding. Wyoming king sheets are a specialty item, and standard king fitted sheets will not stretch to fit.

Texas King: Extra Length for Tall Sleepers

A Texas king is 80 inches wide and 98 inches long. That is 18 inches longer than a standard king, roughly 8 feet 2 inches of sleeping length. It is narrower than a Wyoming king but far longer, which makes it the clear choice for sleepers 6 feet 6 inches and taller who are tired of their feet hanging off the end.

The long footprint is the trade-off. A Texas king needs a long wall and generous space at the foot, and in many rooms it crowds the doorway or closet.

Alaskan King: The Largest Standard Oversize

An Alaskan king mattress is 108 by 108 inches, a 9 foot square. That is nearly double the sleeping surface of a standard king (11,664 square inches versus 6,080). Two adults, a couple of kids and a large dog can share it without anyone feeling squeezed.

Alaskan king size is also the most demanding to live with. The mattress is usually delivered compressed and rolled, or in sections, because a 9 foot rigid mattress will not turn through most hallways. It needs a very sturdy custom frame with center supports, and the bed itself can weigh well over 200 pounds once assembled. Alaskan king sheets exist, but you will find them only from specialty or custom bedding sellers.

Family Beds and Double King Setups

A family size bed is often built by joining standard mattresses on one oversized frame. A double king bed, two standard kings side by side, creates a surface roughly 152 by 80 inches. Two twin XL mattresses placed side by side, by contrast, only equal a standard king (76 by 80 inches), so that combo does not get you more space, just independent halves.

Dedicated family XL mattress products also exist, typically 120 to 144 inches wide. Some are sold as one huge mattress; others ship as two or three connected pieces with a topper to hide the seams. The advantage of a combo setup is that each mattress is a standard size, so you can buy normal fitted sheets for each one and cover the whole thing with an oversized flat sheet or two separate comforters.

Room Size Required

An extra large bed looks wonderful in a large room and overwhelming in a small one. Plan for at least 24 to 36 inches of clearance on each side you walk around, plus room for doors to open and drawers to pull out.

• Wyoming king: about 13 by 13 feet minimum, 14 by 14 feet comfortable.
• Texas king: about 12 by 14 feet minimum, with the long side running away from the headboard wall.
• Alaskan king: about 14 by 14 feet minimum, 16 by 16 feet comfortable.
• Double king or family bed: 16 by 14 feet or larger, depending on the configuration.

Mark the frame footprint with painter’s tape before you order anything. Frames add 2 to 8 inches beyond the mattress depending on design, and a big headboard adds more. On hardwood, laminate or vinyl plank floors, use wide furniture pads under every leg; heavy oversized beds concentrate weight on a few points and can dent softer finishes.

Frames, Foundations and Delivery

Few retail frames fit oversized mattresses, so most buyers choose one of three paths:

1. Custom or specialty platform frame. A platform bed frame built for the exact mattress size, with slats no more than about 3 inches apart and multiple center support legs.
2. Built-in platform. A carpenter builds a low plywood platform with framing underneath, often with drawers. This works well for Alaskan kings and family beds.
3. Two standard frames joined. For a double king or family bed made of standard mattresses, two king platform frames bolted together can work, as long as the joint is supported.

Before delivery, measure every doorway, stair turn and hallway on the path. A compressed mattress handles tight turns, but a solid headboard or one-piece frame may not. If you are assembling a large frame yourself, get a second person to help lift heavy panels and keep fingers clear of pinch points.

Bedding Headaches and Workarounds

Bedding is the biggest ongoing challenge with mattress sizes bigger than king.

• Fitted sheets: Wyoming, Texas and Alaskan king fitted sheets are sold by specialty retailers and custom makers. Expect fewer fabric and color choices.
• Flat sheets and blankets: Oversized king flat sheets around 120 inches wide cover a Wyoming king. Alaskan kings often need custom flat sheets or two king flat sheets used side by side.
• Comforters: Many families use two king comforters on an Alaskan king or family bed, which also prevents blanket stealing.
• Combo setups: If the bed is built from standard mattresses, use standard fitted sheets on each and a bridge topper to fill the seam.

Troubleshooting Oversized Beds

Gap or ridge between combined mattresses. Use a foam bridge strip, a mattress connector strap and a single topper over both.

Mattress sags in the middle. The frame needs more center legs. Add support every 3 to 4 feet along the center rail.

Sheets will not stay on. Check pocket depth against mattress height, and use sheet straps for very large fitted sheets.

Hard to make the bed. On an Alaskan king, you cannot reach the middle from one side. Stand on both sides, or use separate comforters for each half.

General Cost Ranges

Oversized mattresses cost considerably more than standard kings, often double or more for an Alaskan king. Custom frames and specialty sheets add significantly to the total. A family bed built from two standard kings can be cheaper overall because mattresses, frames and sheets are mass-produced, even though you are buying two of everything. Get quotes for the mattress, frame, delivery and at least two sets of sheets before deciding.

Choosing the Right Oversized Bed

If you mainly want more personal space as a couple, a Wyoming king is the easiest upgrade. If you are very tall, a Texas king makes more sense. If you co-sleep with kids or large pets, an Alaskan king or a family bed made from two standard kings gives everyone room. Among all the bed sizes bigger than king, the one with the most realistic bedding and room fit usually leads to the happiest result.