What’s Bigger Than a California King Mattress? Mattress Sizes Explained

If you’re wondering “What’s Bigger Than a California King Mattress”, you’re likely looking for more space than even one of the largest standard beds can offer. This guide explains which mattress sizes are larger than a California king, how they compare, and what to consider before choosing an oversized bed.

What Is a California King Mattress, Exactly?

Before answering what’s bigger than a California king mattress, it helps to know its size.

A standard California king mattress typically measures:

• 72" wide x 84" long

That makes it:

• Narrower than a standard king (which is usually 76" wide)
• Longer than a standard king (typically 80" long)

California king mattresses are popular with:

• Taller sleepers who need extra legroom
• Couples who prefer more length over extra width

But for some households—especially families with kids or pets who share the bed—even a California king can feel cramped. That’s where oversized mattress options come in.

What’s Bigger Than a California King Mattress?

Yes, there are mattress sizes larger than a California king. These are often called oversized or custom king mattresses. The most common ones include:

Dimensions can vary slightly by manufacturer, but these are commonly accepted reference points.

Key idea:
If you’re asking “What’s Bigger Than a California King Mattress”, you’re usually looking at Wyoming, Texas, Alberta, or Alaskan king sizes.

How Do Oversized King Mattresses Compare in Real Life?

Wyoming King: A Square Upgrade

• Approx. 84" x 84"
• Feels like a more spacious square version of a king.
• Often chosen by couples who want more width and some extra length without going to the absolute largest option.

Texas King: Extra Length for Maximum Legroom

• Approx. 80" x 98"
• Longer than almost any other common mattress size.
• Often appealing to very tall sleepers or anyone who wants generous foot space.

Alberta King: Very Large, Balanced Square

• Approx. 96" x 96"
• Significantly larger both in width and length than a California king.
• Can accommodate couples, kids, and pets with room to spread out.

Alaskan King: One of the Biggest You’ll Find

• Approx. 108" x 108"
• Much larger than a California king in both directions.
• Often used in large bedrooms where multiple people share the bed regularly.

Why Would Someone Need Something Bigger Than a California King?

People search for “What’s Bigger Than a California King Mattress” for a few common reasons:

• Family co-sleeping: Parents who share the bed with one or more children.
• Pets in bed: Large dogs or multiple pets that take up noticeable space.
• Very tall sleepers: Those who still feel cramped at the foot of a California king.
• Large bedrooms: A very spacious room where a standard mattress looks small.
• Personal comfort preferences: Some people simply enjoy extra space to move freely at night.

Oversized king mattresses can create a more expansive sleeping surface, but they also come with practical considerations.

What Should You Consider Before Going Bigger Than a California King?

1. Room Size and Layout

Oversized mattresses can dominate a bedroom. Before choosing anything bigger than a California king, consider:

• Clear walking space around the bed
• Placement of dressers, nightstands, and doors
• Room for bedding changes and cleaning

A simple guideline is to ensure there’s enough open space around the mattress so the room still feels usable and comfortable.

2. Bedding and Accessories

The larger the mattress, the more specialized the bedding:

• Sheets and protectors may need to be specifically sized for Wyoming, Texas, Alberta, or Alaskan kings.
• Bed frames and foundations might be limited to certain designs or custom builds.
• Headboards and bases must match the exact dimensions of your chosen size.

This can affect both availability and cost, and it may take more effort to find replacements.

3. Delivery and Movement

Oversized mattresses can be heavy and less flexible, which may make:

• Delivery through narrow hallways or staircases more challenging
• Rotation or moving the mattress within the home more difficult

Measuring doorways, stairwells, and tight corners in advance can help avoid surprises.

4. Cost and Long-Term Practicality

Larger mattresses typically:

• Use more materials
• Require custom or specialty items
• May be less commonly stocked

Some people are comfortable with this trade-off for the extra sleeping space, while others prefer the easier availability of more standard sizes.

✅ Quick Mattress Takeaways

Key points consumers should understand about What’s Bigger Than a California King Mattress:

• California king = 72" x 84": Long and narrow compared to a standard king.
• Yes, there are bigger sizes: Wyoming, Texas, Alberta, and Alaskan king are all typically larger.
• Oversized kings offer more width, length, or both, making them useful for families, tall sleepers, and large bedrooms.
• Bedding and frames for oversized mattresses are more specialized, so availability and cost can differ from standard sizes.
• Room measurements matter: Always check that an oversized mattress fits comfortably in your space, with adequate room to move around.

Choosing what’s bigger than a California king mattress comes down to how much space you truly need, how large your bedroom is, and how comfortable you are with specialized sizes and bedding. With a clear understanding of the dimensions and trade-offs, it becomes easier to find a mattress size that matches your sleeping habits and living space.