If you've outgrown a standard king and started Googling, you've probably hit a wall of confusing names — Alaskan King, Texas King, Wyoming King, California King — all called "king", all wildly different sizes. This guide settles it: exact dimensions in inches and feet, square footage, who each size is genuinely built for, what it'll cost you (mattress + frame + bedding), and the part nobody warns you about — sourcing sheets that actually fit.
Quick Answer — The 4 King Sizes at a Glance
- Alaskan King — 108" × 108" (9 ft × 9 ft) — the largest mainstream bed in the world, square shape, sleeps 4+ adults or a family.
- Texas King — 80" × 98" — standard king width, but 18 inches longer. Built for sleepers over 6'5".
- Wyoming King — 84" × 84" — perfectly square, smaller footprint than Alaskan but still sleeps 3 adults comfortably.
- California King — 72" × 84" — narrower than a standard king, but 4 inches longer. The only one of the four that fits in a normal bedroom and uses standard-ish bedding (see our bed sheet sizes chart for every dimension).
The honest answer: California King is the only "alternative king" you'll find off-the-shelf bedding for. Alaskan, Texas, and Wyoming are all custom-bedding territory.
- Master comparison table — all 4 kings
- Alaskan King — 108" × 108"
- Texas King — 80" × 98"
- Wyoming King — 84" × 84"
- California King — 72" × 84"
- Will it fit your bedroom? Minimum room sizes
- The bedding reality — sourcing sheets that actually fit
- Total cost stack — mattress, frame, bedding
- Which king is right for you?
- Frequently asked questions
Master comparison table — all 4 kings
The single source of truth for dimensions, square footage, and capacity. All four kings, every spec that matters:
| Size | Dimensions (in) | Dimensions (ft) | Sq ft | Sleepers | Off-shelf bedding? |
|---|---|---|---|---|---|
| Alaskan King | 108 × 108 | 9 × 9 | 81 | 4+ adults / family | No — custom only |
| Texas King | 80 × 98 | 6.7 × 8.2 | 54.4 | 2 tall adults (+ pet) | No — custom only |
| Wyoming King | 84 × 84 | 7 × 7 | 49 | 3 adults / 2 + 2 kids | No — custom only |
| California King | 72 × 84 | 6 × 7 | 42 | 2 adults (+ small pet) | Yes — common size |
| Standard King (for reference) | 76 × 80 | 6.3 × 6.7 | 42.2 | 2 adults | Yes |
Two things to notice that most guides skip: the Alaskan King has nearly twice the surface area of a Standard King (81 sq ft vs 42.2), and Wyoming King is actually smaller in square footage than a Standard King — it just feels different because it's square instead of rectangular. Shape changes everything about how a bed sleeps.
Alaskan King — 108" × 108" (9 ft × 9 ft)
The Alaskan King is the largest mass-market bed size on the market. Nine feet by nine feet, perfectly square, 81 square feet of sleeping surface — almost double a standard king.
Who buys an Alaskan King
- Co-sleeping families — two parents + two kids + a dog and nobody touches anyone all night.
- Light-sleeping couples who can't tolerate any partner movement transmission. With 9 ft of width, you're effectively in two zones.
- Master suites in large homes where the bed is meant to anchor the room visually, not just function as furniture.
The downsides nobody mentions
- Doorways. A 108" × 108" mattress will not fit through most standard interior doors (32–36"). You're either using a split mattress, taking the door off, or hoisting it through a window.
- Stairs and corners. Tight stairwells and L-shaped landings stop Alaskan Kings dead. Always measure delivery path first.
- Sheets are entirely custom. No big-box retailer makes 108" × 108" fitted sheets in stock. You're buying from a small handful of specialist makers (more on this in chapter 7, and our deep-pocket sheets guide covers the related fit issue).
- Frame weight. Mattress + frame routinely runs 250–400 lbs. Older homes with weaker subfloors can have point-load issues — get a structural opinion if you're upstairs.
Typical price (mattress alone): $2,500–$6,000+ for a quality build. Add frame, foundation, and bedding and a complete Alaskan King setup is usually $4,000–$8,500 all-in.
Texas King — 80" × 98"
Texas King is the "tall sleeper" king. Same width as a standard king (80 inches) but a full 18 inches longer at 98 inches. The shape stays familiar — it's still a rectangle — but it accommodates anyone over 6'5" without their feet hitting the footboard.
Who buys a Texas King
- Tall couples. NBA-height and even just 6'4"–6'8" sleepers benefit massively from the extra length. (For a deeper look at standard king vs alternatives for tall sleepers, see king vs queen size bed.)
- Couples who sleep with a large dog at the foot. The extra 18 inches at the bottom gives a Great Dane its own zone.
- Anyone who hated waking up with feet hanging off a standard king.
What surprises buyers
- Texas King is not bigger than Alaskan or Wyoming King by surface area — only longer. At 54.4 sq ft, it's actually smaller than Wyoming King by less than 5 sq ft, but it sleeps very differently because of the rectangular shape.
- It's the easiest oversized king to source frames for because the 80" width matches standard king and California king frame brackets — you only need a non-standard length.
- Sheets are still custom — but easier to source than Alaskan because the width matches standard king. A standard king top sheet may even cover it sideways in some configurations.
Typical price (mattress alone): $2,000–$4,500. Total setup: $3,000–$6,000.
Wyoming King — 84" × 84" (7 ft × 7 ft)
Wyoming King is the "happy medium" oversized bed. Perfectly square at 7 feet by 7 feet, it has more width than a standard king (84" vs 76") and more length too (84" vs 80") — but in a footprint that still fits in most master bedrooms without overpowering them.
Who buys a Wyoming King
- Couples with one or two kids who sometimes climb in. 49 sq ft is enough for two adults plus a small child or two without anyone falling off.
- Couples with a medium-sized dog. Square shape means the dog can sleep across the foot without stealing a sleeper's leg space.
- Buyers who want oversized but not extreme. Wyoming gives you the spaciousness without the doorway/staircase nightmare.
The square-shape trade-off
Wyoming's square dimensions mean it works equally well with the headboard against any wall — no "long" or "short" axis to worry about — which is genuinely useful for awkward bedroom layouts. The flip side: square mattresses can be subtly disorienting because there's no obvious "head" or "foot" direction. Most owners orient by where the door is.
Typical price (mattress alone): $1,800–$4,000. Total setup: $2,800–$5,500.
California King — 72" × 84"
California King is the only "alternative king" that's a true mainstream bed size. Narrower than a standard king (72" vs 76") but 4 inches longer (84" vs 80"). Originally invented in Los Angeles in the 1960s for tall sleepers — and still the right answer for anyone over 6'2" who doesn't want to commit to oversized territory. If you're cross-shopping with a queen, our double vs queen bed guide may also help.
Who buys a California King
- Tall single sleepers who want the length without the partner-occupied width.
- Tall couples with narrow bedrooms — the 72" width fits better than a standard king's 76" in older homes.
- Anyone who wants oversized-bed length without oversized-bed sourcing problems. Cal King bedding is everywhere.
The big advantage
Bedding is widely available off-the-shelf. Every mainstream bedding brand — including Or & Zon's organic linen and percale collections — stocks Cal King in fitted sheets, flat sheets, and duvet covers. No custom orders, no 6-week lead times, no specialty-shop pricing. Our how to choose bed sheets guide walks through the buying decision for any king size.
Typical price (mattress alone): $800–$3,000 for any quality tier. Total setup: $1,500–$4,500.
Will it fit your bedroom? Minimum room dimensions
Buying an oversized king is pointless if you can't walk around it. The rule of thumb: leave at least 24 inches of clearance on three sides (one side can be against a wall). Here's the actual minimum bedroom size for each:
| Size | Bed dimensions | Min room (ft) | Comfortable room (ft) | Door fit? |
|---|---|---|---|---|
| Alaskan King | 9 × 9 ft | 13 × 13 | 15 × 15+ | Split mattress required |
| Texas King | 6.7 × 8.2 ft | 11 × 12 | 13 × 14 | Usually yes (check stairwells) |
| Wyoming King | 7 × 7 ft | 11 × 11 | 13 × 13 | Usually yes (split also available) |
| California King | 6 × 7 ft | 10 × 11 | 12 × 13 | Yes |
Pre-purchase checklist before any oversized king:
- Measure narrowest doorway on the delivery path (interior + entrance + bedroom door).
- Measure stairwell width and any landing turn-radius.
- Measure ceiling height — important for bedrooms with sloped ceilings or low-clearance entrances.
- If anything is borderline, order a split mattress (most oversized makers offer this — two halves that meet in the middle).
The bedding reality — sourcing sheets that actually fit
This is the part most comparison guides skip — and the part Reddit threads on oversized kings are full of frustrated complaints about. Here's the honest breakdown:
What bedding you can actually buy off-the-shelf
- California King — every major bedding retailer stocks it. Fitted sheets, flat sheets, duvet covers, mattress protectors. Same price tier as standard king. Zero sourcing pain.
- Alaskan / Texas / Wyoming King — virtually no major retailer stocks these. You're either ordering custom from oversized-bed specialty shops (4–8 week lead times, premium pricing), or buying multiple flat sheets and learning to make a workable bed without a fitted layer.
What to look for in oversized-king bedding
- Fibre, not just count. A 108" × 108" sheet is a lot of fabric on top of you. Choose fibres that breathe — long-staple cotton (percale or sateen), linen, or bamboo. Polyester or microfiber traps heat at this scale and you'll feel it.
- Deep pockets — minimum 16". Oversized mattresses often pair with thick pillow-tops (12–18 inches deep). Standard 12" pockets won't stay tucked — see deep pocket sheets explained.
- Pre-shrunk fabrics. A custom 108" × 108" sheet that shrinks 4% becomes 103.7" × 103.7" — and won't fit. Always confirm pre-washed/pre-shrunk before ordering.
- Reinforced corner elastic. Cheap fitted sheets pop off oversized mattresses overnight. Look for double-stitched elastic with corner straps if available.
The bedding-side cost premium
A high-quality California King sheet set runs $150–$250. The same fabric quality in Alaskan King sizing typically runs $400–$700+ custom-made — roughly a 2.5–3× markup for the surface area and the bespoke production run.
This is the hidden ongoing cost of going oversized: every time you replace sheets, you're paying that premium again.
Total cost stack — what you'll actually spend
Mattress price gets all the attention. Here's what the full first-year cost looks like once you add frame, foundation, and a complete bedding setup (2 sheet sets, 1 duvet cover, mattress protector):
| Size | Mattress (mid-tier) | Frame + foundation | Bedding (year 1) | Total |
|---|---|---|---|---|
| Alaskan King | $3,500 | $1,800 | $1,400 | ~$6,700 |
| Texas King | $2,800 | $1,200 | $900 | ~$4,900 |
| Wyoming King | $2,400 | $1,100 | $800 | ~$4,300 |
| California King | $1,500 | $650 | $400 | ~$2,550 |
The Alaskan King isn't 2× the cost of a California King — it's closer to 2.6× once bedding is factored in, and the gap widens every year you re-buy sheets. If your decision is between "California King" and "Wyoming King for a similar lifestyle reason", the cost difference is roughly $1,800 in year one — significant but not insurmountable for the extra surface area.
Which king is right for you?
Use this decision tree. Pick the first scenario that matches:
- You're 6'5" or taller, sleeping solo or with one partner → California King (off-shelf bedding, length you need, no oversized headaches) or Texas King if you want extra length without sacrificing standard width.
- You sleep with a partner + two kids regularly + a dog → Alaskan King. This is the genuinely best use case for it.
- You sleep with a partner + occasional kid visits + medium dog → Wyoming King. Sweet spot of size and practicality.
- You want maximum personal space without changing your house → Wyoming King. Will likely fit your existing master bedroom; doorways are usually fine.
- You're a tall couple in a tall house with a tall budget → Texas King. Length without the doorway problems of Alaskan.
- You're upgrading from a queen and want an obvious step up without commitment → California King or Standard King. Don't jump to oversized on a first upgrade. Compare side-by-side in our king vs queen size bed guide.
Frequently asked questions
Is an Alaskan King bigger than a California King?
Yes — substantially. An Alaskan King is 108" × 108" (81 sq ft) while a California King is 72" × 84" (42 sq ft). The Alaskan King has nearly double the surface area.
What is a 7 ft by 7 ft bed called?
A bed measuring 7 ft × 7 ft (84" × 84") is called a Wyoming King. It's a square mattress that's wider and longer than a standard king, but smaller than an Alaskan King.
Why is it called a Wyoming King bed?
Wyoming King is part of a family of "Western state" oversized king sizes (Alaskan King, Texas King, Wyoming King) named for the spacious, wide-open feel of those US states. The naming is marketing rather than geography — none of these sizes have specific Wyoming origin — but the convention has stuck across the industry.
Why do people buy Alaskan King beds?
The three most common reasons: (1) co-sleeping families with multiple children who want everyone to actually sleep; (2) couples with very large dogs who share the bed; (3) light sleepers who can't tolerate any partner movement transmission and want enough distance to sleep undisturbed.
What is the largest bed size in the world?
Among mass-market sizes, the Alaskan King at 108" × 108" is the largest commonly available. Some custom-build retailers offer larger family beds (sometimes called "Family XL" or "Mega King") up to 144" wide, but these are bespoke orders rather than catalogue sizes.
Will an Alaskan King fit through my door?
A 108" × 108" mattress will not fit through standard 32" or 36" interior doors. You have three options: order a split-mattress version (two halves that meet in the middle), have the mattress hoisted through a window, or remove the door and frame for delivery. Always measure your delivery path before ordering.
Can I find sheets that fit a Texas or Wyoming King?
Off-the-shelf — rarely. Most mainstream bedding brands stop at California King. Texas, Wyoming, and Alaskan King sheets are either custom-ordered from oversized-bed specialty shops (typically 4–8 week lead times) or sourced direct from the mattress maker. Expect 2–3× the price of a comparable California King set.
Is a California King bigger than a standard king?
Not in surface area — they're nearly identical (Cal King is 42 sq ft, Standard King is 42.2 sq ft). The difference is shape: California King is narrower (72" vs 76") but longer (84" vs 80"). For tall sleepers the California King wins; for couples with average-height sleepers, the Standard King's extra width is usually preferable.
Bedding for whatever size you choose. Or & Zon's organic linen and percale collections stock California King in every fabric — and we make custom sizing available on request for Wyoming, Texas, and Alaskan kings. Soft, breathable, GOTS-certified organic, and built to outlast standard high-street sheeting. Also worth a read: do two twins make a king? and comforter size chart by king size. Browse the bedding collection →

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