Family King Mattress: The Largest Bed We Build
A Family King mattress from Sleep Essentials is 120 by 80 inches, from our mattress size chart, and we build it only as a Split Family King. That is 44 inches wider than a standard King at 76 by 80, at the same length, and each side can be its own firmness.
Our size chart calls the Family King the largest mattress made. It is the biggest of the four super king sizes we build to order in Roanoke, Virginia, alongside the Wyoming King, the Texas King and the Florida King. This page covers what you need to decide before you order one.
Family King mattress size: 120 by 80 inches
Here is how the Family King sits among the oversized kings we build. Every number is from our own size chart.
| Size | Measurements | Compared with a standard King, 76 by 80 |
|---|---|---|
| Standard King (Eastern King) | 76 by 80 inches | The starting point |
| Wyoming King | 84 by 84 inches | 8 inches wider and 4 inches longer |
| Texas King | 96 by 80 inches | 20 inches wider, same length |
| Florida King | 108 by 80 inches | 32 inches wider, same length |
| Family King | 120 by 80 inches | 44 inches wider, same length |
The Family King is 12 inches wider than the Florida King bed at 108 by 80, and the same 80 inch length as a standard King. If you do not quite have the room for it, the Florida King gives you the same basic luxury a little less wide. If length is your problem rather than width, read about the Wyoming King, 84 inches square.
Measure your bedroom before you order. A bed 120 inches wide needs room to walk around it and a route into the room. Give us the room measurements on the phone at 540-397-2337 and we will tell you honestly whether it will fit.
A family bed mattress for the whole household
Our size chart says it simply: if you have a large family or a lot of pets that sleep with you, or you just have a huge bedroom that needs to be filled with luxury, the Split Family King is right for you. These are the people who call us about one:
- Parents who share a bed with their children most nights and want everyone to fit.
- Households where the dogs sleep in the bed too.
- Couples who want a bed so wide that neither of them feels the other move.
- Anyone with a very large bedroom where a king looks lost.
A family bed mattress has a second job beyond space: two adults who sleep differently still have to share it. That is one reason this size is built as a split.
Split Family King: two firmness levels in one bed
A Split Family King is two halves that sit side by side on the same bed. Each half is built from its own latex layers, so each half can be its own firmness, and our size chart says you can get it with one side firmer or softer than the other.
If you want to choose each side separately, use our split firmness mattress for two sleepers, where you pick an arrangement for Side A and another for Side B. Side B is the firmer side. Split Family King comes in 9 or 12 inches.
Two halves also make a bed this size possible to deliver. They are far easier to carry up a staircase and around a landing than one oversized mattress, and each half can go on its own adjustable base.
The four arrangements in Split Family King
On the builder there are 216 ways to arrange three layers, so we publish four ready made arrangements as starting points. All four are made in Split Family King, and each one can still be changed layer by layer.
| Arrangement | Top, middle, bottom | Who it suits |
|---|---|---|
| AR1 | Ultra Soft, Medium Soft, Medium Soft | Lighter body weights and anyone who loves a soft bed. |
| AR2 | Soft, Medium, Medium | Our most popular. Extremely comfortable without being too soft or too firm. |
| AR3 | Medium Soft, Medium Firm, Medium Firm | Firm support with a cushioned top, so shoulders and hips sink in while your back stays supported. |
| AR4 | Medium Firm, Ultra Firm, Ultra Firm | Our firmest, for heavier body weights or anyone who wants a truly firm bed. |
Each link opens the product with Split Family King already chosen: AR1 Split Family King, our softest, AR2 Split Family King, the most popular, AR3 Split Family King for back support and AR4 Split Family King, our firmest.
What a Family King mattress costs
All four arrangements start at $4,000 in Split Family King at 9 inches, and the 12 inch build starts at $5,150. Pick the size and the thickness on the product page and it shows you the exact price.
These are made to order beds built in our own factory, not warehouse stock. Instead of a permanent discount, you start from one of the four published arrangements and swap a single layer later if the feel is not right, which costs a fraction of a new bed.
What is inside a Family King latex mattress
The same thing that is inside every bed we make. The latex is certified to the Global Organic Latex Standard, GOLS. We say it precisely, because the industry is sloppy with the word: the certification applies to the latex material itself, and we publish the paperwork on our page about certified organic latex and fire retardant chemicals.
- Three latex layers a side, each layer three inches thick.
- Six firmness levels for each layer: Ultra Soft, Soft, Medium Soft, Medium, Medium Firm and Ultra Firm.
- No fire retardant chemicals.
- No toxic glues.
- A zip cover made from 70 percent Tencel and 30 percent polyester, so the cover comes off.
Because the layers are separate pieces, the bed is never a one time decision. If one side turns out firmer or softer than you expected, you swap one layer on that side rather than replacing the whole mattress. On a bed this big that matters more than it does on a queen, because replacing the whole thing is a far bigger bill.
What to put a Family King on
An oversized mattress needs an oversized base, and a frame bought somewhere else under the same name may not match, because sellers use the super king names loosely. Check the inside measurement of any frame against our size before you order. From us you have two choices, both made for the super king sizes:
- A Southerland Sleep adjustable base. In Family King the B26 is from $3,200, the G94 adjustable base for a Family King, $3,600 and the G96 is from $3,800. In a split, each half gets its own base, so one of you can raise the head of the bed while the other stays flat.
- A shippable mattress foundation, built in all four super king sizes in 5 inch, 8 inch and 11 inch heights. It ships flat and goes together in the room, which matters when a one piece base this size will not fit up your stairs.
Sheets that fit a Family King
Buy an oversized bed and your local shop does not sell sheets for it, and king sheets will not stretch to fit. We have Ocochi make them to order for us. The Ocochi bamboo sheet set for Family King beds comes in Family King and Split Family King, in seven colours, from $340. They are bamboo lyocell, certified OEKO-TEX.
Buying a bed this big without worrying about it
A Family King is a bed you will keep for years, so the terms matter as much as the mattress.
- 60 day comfort assurance. Sleep on it. If the feel is wrong, we deal with it.
- Ten year non prorated warranty. Non prorated is the important word there.
- Layer swaps instead of replacements. One layer changes and the bed stays.
- Built in Roanoke, Virginia and shipped nationwide. The people who make your bed answer the phone.
If you are within driving distance you are welcome to lie on these beds before you buy, and you can arrange a visit to our Roanoke showroom.
How to order a Family King mattress
- Measure the room and the route in.
- Call 540-397-2337 and tell us who sleeps in the bed: the adults, the children, the pets, and whether anyone has shoulder or hip pain.
- Pick an arrangement for each side, with the firmer sleeper on Side B.
- Pick 9 or 12 inches.
- Add a base and sheets in the same size, so everything fits on the day it arrives.
Still deciding between the oversized sizes? Our page on the Texas King mattress, 96 by 80 covers the narrowest of the three wide kings, and every size is on our full chart of bed sizes.
Common questions
How much is a family bed?
Our Family King starts at $4,000 in any of our four organic latex arrangements at 9 inches, and the 12 inch build starts at $5,150. The product page shows the exact price once you pick the size and thickness.
What size is bigger than a super king bed?
Of the sizes we build, the Family King is the biggest: 120 by 80 inches on our mattress size chart, 12 inches wider than the Florida King and 44 inches wider than a standard King.
Is there such a thing as a super king size bed?
Yes. We build four super king sizes, all bigger than a standard King at 76 by 80: Wyoming King 84 by 84, Texas King 96 by 80, Florida King 108 by 80 and Family King 120 by 80 inches.
Do I need a super king size bed?
If children or pets end up in your bed most nights, or the two of you keep waking each other, a king may not be enough. Measure your room first, then call 540-397-2337 and we will tell you honestly which size fits your room and your household.
Do you make sheets for a Family King?
Yes. Ocochi makes Premier Bamboo sheet sets to order for us in Family King and Split Family King, in seven colours, from $340.