Wyoming King Bed
Eighty-four inches by eighty-four inches. Wyoming King is the size most co-sleeping families end up at after a year of trying to make a standard king work. Seven inches wider than a king in both directions. The same length as a California king. Square footage lands between the standard king and the much bigger Alaskan.
For two adults plus one or two small kids, this is usually the size that resolves the kicked-all-night problem without taking over the room. Most master bedrooms hold it. Most standard doorways accommodate the modular delivery. The bed frames you already own will almost certainly not fit, which is the part that catches people off guard.
Dimensions, room requirements, what frames work for the size, what bedding fits, and which sellers carry it. All below.
The Wyoming King is a 7-foot by 7-foot (84" x 84") square mattress that offers significantly more space than a California King while fitting in more bedrooms than an Alaskan King.
Who It's For
- Couples who want more space than a King
- Families with one child or pet
- Tall sleepers who need length and width
- Those with medium-large bedrooms
Room Requirements
Measure your bedroom before ordering. Allow at least 2-3 feet on each side of the bed for walking space, plus room for nightstands and other furniture.
Pros and Cons
Pros
- ✓Good balance of size and practicality
- ✓Fits in more bedrooms than Alaskan King
- ✓Square shape works any direction
- ✓More affordable than larger oversized options
Cons
- ✗Still requires a large bedroom
- ✗Limited retail availability
- ✗Custom bedding required
- ✗Harder to find frames than standard sizes
Where to Buy Wyoming King Beds
Last verified: February 2026
13 sellers currently offer Wyoming King beds. Most oversized beds are made-to-order and ship directly from the manufacturer.
| Seller | Price Range | |
|---|---|---|
Engineered SleepFeatured✓ Verified specs Best for modular/dual-firmness 15% off with BIGBED15CoolingCustom firmness MattressFoundation | $3,200 - $6,000 | Visit |
Sleep Boutique / Von Viva✓ Verified specs🍁 Best for Canadian buyers Motion isolation: highEdge support: highCoolingCustom firmness MattressFoundation | $3,700 - $8,000 | Visit |
Rest Right Mattress✓ Verified specs Best for original-manufacturer trust Cooling MattressFrameFoundationBedding | $2,600 - $7,000 | Visit |
Big Mattress Co.✓ Verified specs Best for budget-conscious buyers Motion isolation: highCoolingCustom firmness MattressFrameBedding | $2,000 - $5,000 | Visit |
Mattress Insider✓ Verified specs Best for custom sizing CoolingCustom firmness MattressFrameBedding | $2,000 - $4,500 | Visit |
Custom Mattress Factory✓ Verified specs Best for traditional craftsmanship MattressFrameBedding | $2,000 - $5,500 | Visit |
AdultBunkBeds.com✓ Verified specs🍁 Best for frame variety 2,000 lb capacity FrameMattress | $2,000 - $8,000 | Visit |
Delarkin✓ Verified specs Best for Imperial King (144x144) Motion isolation: high MattressFoundation | $2,500 - $8,000 | Visit |
Melaaura Best for luxury Italian frames White-glove delivery FrameBedding | $5,000 - $20,000 | Visit |
Vero Linens Best for luxury Italian linens Cooling Bedding | $260 - $1,150 | Visit |
Egyptian Linens Best for affordable in-stock bedding Cooling Bedding | $160 - $400 | Visit |
Byourbed Best for branded oversized comforters Bedding | $138 - $350 | Visit |
OCOCHI Bedding | $1,500 - $4,000 | Visit |
Featured: Engineered Sleep
4th generation mattress makers - handcrafted in the USA since 1931. Use code BIGBED15 for 15% off.
Common Mistakes When Buying a Wyoming King
Ordering standard King bedding
A Wyoming King is 84" × 84" – a standard King is 76" × 80". The width difference is only 8 inches, which tempts some buyers to try standard King sheets. They won't fit properly. The 4-inch length difference on each side means fitted sheets won't stay tucked, and flat sheets won't drape correctly. Buy Wyoming King-specific bedding. See our Wyoming King sheets page.
Underestimating the weight difference from a standard King
A Wyoming King mattress weighs 90–160 lbs – notably heavier than a King (80–130 lbs). This matters for delivery and setup, especially on upper floors.
Assuming any King frame will work
A Wyoming King is 84" × 84" – square, and 8 inches wider and 4 inches longer than a standard King frame. You need a frame specifically built for Wyoming King dimensions. See our Wyoming King bed frames page.
Not checking if the seller ships to your area
Some Wyoming King sellers only ship within the contiguous US. If you're in Canada, Sleep Boutique (Calgary) is one of the few domestic options. Otherwise, check whether US sellers offer cross-border shipping.
Wyoming King Bedding Availability
The Wyoming King has fewer bedding options than the Alaskan King, but the essentials are covered:
Available
- ✓Sheet sets – OCOCHI, Wyoming King Beds, Mattress Insider, and Big Mattress Co. carry fitted and flat sheet sets. Materials include cotton, bamboo, and microfiber. Prices: $80–$300.
- ✓Comforters – OCOCHI and Wyoming King Beds offer Wyoming King comforters (84" × 84" or slightly oversized for drape). Big Mattress Co. also carries options.
- ✓Mattress protectors – available from OCOCHI and Wyoming King Beds.
Limited
- ✗Duvet covers specifically sized for 84" × 84" – available from OCOCHI and Wyoming King Beds, but selection is limited. An oversized King duvet (90" × 90" or larger) can work as an alternative.
- ✗Decorative bedding (shams, throws, bed skirts) – very limited in this size.
See our Wyoming King sheets page for a full comparison of what's available.
Frequently Asked Questions
How big is a Wyoming King bed?
A Wyoming King bed measures 84 inches by 84 inches (7 feet x 7 feet), providing 49 square feet of sleeping surface–about 30% more than a standard King.
What's the difference between Wyoming King and Alaskan King?
The Wyoming King is 84" x 84" (49 sq ft) while the Alaskan King is 108" x 108" (81 sq ft). The Alaskan King is 65% larger but requires a much bigger room.
How much does a Wyoming King bed cost?
Wyoming King mattresses typically range from $1,800 to $5,000. Complete setups with frame and bedding run $3,000-$7,000.
Will a Wyoming King fit in my bedroom?
You need at least a 10' x 10' room, but 12' x 12' is recommended. Measure your space and allow 2-3 feet on each side for walking and furniture.