Bed Dimensions

Choosing the right bed size is an integral part of the mattress purchase process. For many sleepers, it may be common to keep a mattress the same size as when it was replaced, but things change – sleepers change, family structure changes. Are you an active sleeper? Do you have pets or children sharing the bed with you? Do you have a partner? These are just some of the simple questions to ask yourself when deciding which size of mattress, which will suit you the most.

Comparison of 9 different sized beds

Green Tea Memory FoamPlush79.4 poundsFoam80 x 76 x 12 inSee Details
Zinus Upholstered Diamond Stitched Platform BedMedium79.4 poundsFoam80 x 63.4 x 40.7 inSee Details
Linenspa 3 Inch Gel Swirl Memory FoamPlush17.2 poundsmemory foam, gel14.6 x 14.6 x 23.7 inSee Details
Brentwood Home Cypress MattressMedium33 poundsGel Foam;Memory Foam75 x 39 x 11 inSee Details
Red Nomad - King Size 2 Inch ThickMedium16.34 poundsMemory Foam20 x 12.99 x 12.52 inSee Details
Modway Aveline 10" Gel Infused Memory FoamFirm76 poundsMemory Foam80 x 76 x 10 inSee Details
Tuft & Needle Twin XL MattressMedium45.2 poundsFoam80 x 39 x 10 inSee Details
LUCID 3 Inch Bamboo Charcoal Memory FoamMedium21.2 poundsMemory Foam71 x 3 x 83 inSee Details
Brentwood Home Cypress MattressMedium33 poundsGel Foam;Memory Foam75 x 39 x 11 inSee Details

What to look for

When looking for a new bed, you risk being blinded by the many products to choose from, depending on the style of the mattress and the structure. There are numerous excellent models of decoration and comfort, and it can quickly become difficult to specify your choices. One thing you can do to help choose from all that has been presented is to focus first on what you can do to make sure your best choices meet your needs. This is especially true if you are trying to measure yourself against what you can currently have. A common question to many people is how wide is a king-size bed frame, because the width, more than the length, can pose climbing problems.

Common bed sizes

The best-known bed-size terminology that people commonly associate includes twin, full, king and queen beds. The twin beds and double beds are very popular with children who have their first bed, especially since both are also part of the bed models. These are great choices for kids as they can easily accommodate an adult and help transition a child into adulthood. Queen and King beds are more popular with married couples, as well as young adults seeking to move from single beds to independence in their first home.

Common bed sizes

Many people forget that when looking for a new bed, they must not only adapt to the size of the mattress, but also to that of the frame. The dimensions of the mattress are a good starting point to have a rough estimate of the space you need to accommodate your new sleeping space. In case you need a reminder of what it is:

Size of the mattress in inches at the feet

Twin 39 x 75 3’4 “x 6’2”

Full (double) 54 x 75 4’6 “x 6’2″

Queen 60 x 80 5 ‘x 6’8 ”


In general, the crib mattress should be firm enough. Plush mattresses and pillowcases seem to be a good choice for parents, but infants need a solid sleeping surface as they can not get out of the position where their face is sinking into the mattress. Tap the mattress and see how easy your hand is. The higher the resistance, the firmer the mattress is. Whether you choose a spring mattress or solid foam, make sure it feels good and firm! For more specific recommendations on babies and sleep safety, check out the American Academy of Pediatrics.

Twin / Twin XL

A double (or “simple”) mattress is the smallest mattress size possible, with the exception of a mattress the size of a cradle. The dimensions of the twin mattress are about 38 inches wide by 75 inches long. At about 75 inches long, double and full mattresses may be too short for some adults. A twin XL mattress has the same width as a regular twin (about 38 inches), but has an extra length of 5 inches (for a total of 80 inches). They are about the same length as a king or queen mattress.

Full size

A full size bed is actually just enough space for a single bed and only 27 inches per person (the size of a crib), a full mattress is a tight fit for two people. In addition, they are the same length as a twin bed, Parents are increasingly opting for younger children to enjoy a more comfortable place to sit or lie to read to children at home by providing them bigger beds.

King size: 76 x 80 6’4 “x 6’8”

There are of course some variants, such as an extra-long twin, a Californian and California Queen and a California King, which generally add more length than width to their overall measurements. These sizes require their own bed bases and special sheets for a good fit.

Most popular bed size: Queen size beds

The most popular bed size for those who first invested in their own bed is a queen. They are often considered a good investment because they can easily switch to a guest bed as the household gets bigger or when the decor and style are improved in a master bedroom. As a result, almost half of the world’s adult population sleeps on a queen bed for most of their adult lives, if not all. So, when those looking to gain extra bed space with the family, or just to expand, the most common questions about bed size relate to bed size measurements. The width and length of a king bed frame is an important consideration for your space. The difference in size compared to a queen is noticeable and must be taken into account to avoid cluttering your sleeping space.

Most popular bed size: King size beds

Obviously, a bed frame of any size can vary greatly depending on the style you are considering. Floating platform beds will generally be wider and longer depending on the design, as will most items with storage space, such as shelves and drawers. The sled style frames will be longer to fit the curvature of the head and foot-board, but they will all have one thing in common: the space provided for the rest of the mattress.

If a simple frame is enough for you, you can expect, on average, to add between 2 and 5 inches extra to your mattress measurements. This is adapted to the materials with which the frame is manufactured, although the exact dimensions are always offered by the manufacturer. The King Size beds  actually have the same length as a queen size bed, but the difference lies in the width.

A king is 16 inches taller than a queen, which gives you more room to stretch. But if you consider that you need to increase the structure and the mattress, you are looking for a minimum of 18 inches more. (and quite possible up to 21 inches) of floor space needed to accommodate the larger size.

California King Size Bed Dimension

If 18 inches or more in width is too much for you, you may want to consider a California king. This mattress is only 72 inches wide, but 4 inches longer than a standard king or queen bed. This means that you may need to fit about 14 inches wide at a minimum and only about 4 to 6 inches in length.

Custom Mattress

Square, rectangular, round, cut corners adapted to antique canopy beds, we are perfectly suited to working with our manufacturing partners to meet these unique requirements. Our range of luxury natural mattresses hand-made by many manufacturers offer all possibilities. Many brand shops have custom mattress category which is the excellent starting point for ideas and approximate prices for natural mattresses of special sizes.

Final points to consider

Too often, people find a product they like and forget to consider the space they belong to. This is especially true when looking for furniture on which you can very well spend the rest of your life. A king size bed is much wider than a queen, but the same length, which requires you to find a small space to accommodate it. A California king, on the other hand, adds to the width and length, but can very well fit your space better than a standard king. Whatever your decision, make sure your purchase is set with the measurements of your free space so you do not end up with a cluttered room. Above all a bed of any type is for your comfort.

Review of a few king size beds

Green Tea Memory Foam

The 12-inch Zinus Memory Foam Green Tea Mattress provides optimal comfort with a layer of memory foam and a layer of comfort foam that relieve pressure that adapts to the natural shape of your body. Airflow high density foam layers provide long-lasting durability and stability.

Please open your mattress package within 72 hours of receiving it and allow 48 hours for your new mattress to restore its original shape.  Another innovation of Zinus comfort is Avant-garde comfort. We recommend placing your mattress in a well-ventilated area after removing all components from the package. Please allow 72 hours for the odor to dissipate completely. Please allow 24 hours at room temperature for the surface to return to its normal appearance.

(Anonymous review)  The upper layer of memory foam is soft and I dive, but its height is only a few centimeters. After that, I have a good semi firm but still flexible support. It’s hard to explain, but the feeling is very soft but not too much when you lie down on it. It’s a nice combination of soft and semi firm. That’s why so many people use the term plush. It feels like a very expensive hotel at the Ritz Carlton. I used to go back many times all night. Almost never now since I started sleeping on this mattress. I sleep deeply and well. I am told that I snore much less if there is any since my sleep. I used to snore a lot loud, I suppose. My lower back makes me feel a lot better. I used to feel the typical lumbar pain of the old man. I would say that my lower back pain went up to 98%. In addition, I do not wake up with my numb and tingling arm (I sleep on my side). I also feel very rested and well rested. That being said, I am very happy with the mattress. I liked the packaging, it was very easy to install and my mattress reached its full expansion in about 1 hour. However, I waited 12 hours before sleeping on it. Mine has reached the maximum size of 12 “and is well trained, no divots or shapes like any other, I did not smell strange, I was worried after reading all the reviews. IKEA slatted frame support and I felt too close I just ordered a Zinus double rail frame to install my IKEA box spring support.


Zinus Upholstered Diamond Stitched Platform Bed

Transform your bedroom with this Zinus diamond point platform bed frame. Classic style and solid, reliable wood slats support for your spring, memory, latex or hybrid mattress. Comes in a box with the frame, feet and wooden battens well located in the zippered compartment at the back of the headboard for easy assembly. No box spring required. Featuring a classic-style headboard and low-profile footboard, this platform bed provides solid, reliable support for your mattress. Another innovation of Zinus comfort.

(Anonymous review)  Overall, it’s a good bed. The metal structure is robust, the design is superb and the assembly can easily take 20 minutes. The only drawback and, rightly, our biggest disappointment, are the wooden slats provided with the bed. They are not sturdy and began to bow down as soon as my husband took them off. It weighs 276 and I weigh 170. Depending on the box, this bed should be able to hold 500 pounds! We went ahead and installed additional support panels over the wooden slats and the bed seems to bend a little less.

Linenspa 3 Inch Gel Swirl Memory Foam

The 3-inch memory foam mattress pad is infused with gel to help regulate the temperature so that it sleeps cooler than ordinary memory foam mattresses. The lightweight, breathable, open-cell memory foam hugs the curves of your body, aligns the spine and relieves pressure points. CertiPUR-US Certified means that this high-quality memory foam is made without harmful chemicals and meets all safety standards; wait 48 hours until the new smell of foam dissipates

(Anonymous review) The mattress was extremely uncomfortable and I woke up the first week of pain! I then considered going to a motel, but it would have been quite expensive compared to the cost of the dorm. Instead, I ordered this LinenSpa 3 Memory Foam Mattress Topper with XL Double Turret and Memory Foam Pillow (AirCell Contoured Memory Foam Contoured Contour Pillow) and Cushion heating (Sunbeam Xl Renue heat treatment envelope, blue). The LinenSpa was perfect for the bed of the dormitory and greatly alleviated my pain (I have serious chronic problems of the spine at several levels, including a spinal injury and a wheelchair). The very light contour pillow and the extremely soft and soft heating pad made everything bearable. I returned from my trip a month well rested and ready to take action. I now order the 3 inch LinenSpa Mattress Topper in a larger size for my regular bed at home and highly recommend this product. (To clarify, the other items I mentioned are sold separately on Amazon). The shipment of the three items lasted two days and everything was well protected by a package. participates in the Amazon Services LLC Associate Program, which is an affiliate advertising program designed to provide a means for websites to earn advertising fees by advertising and linking to

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