Standard Measurements for a Futon Set

It is common practice in Japan to sleep on a futon on the floor or a tatami mat. Western influences have led to the development of three distinct categories of futons. All of these can be used as couches during the day and beds at night. Space-constrained environments like dormitories, offices, and apartments are prime locations for futons. Futons are versatile furniture that can be used as either a couch or a bed thanks to its foldable mattress and adjustable frame. However, what dimensions should a futon's frame, mattress, and sheets be?

The standard dimensions for a twin futon are 39" x 75", the mattress is 39" x 75", and the cover is 43" x 72". Sheets for full-size futons are 57 by 85 inches, and the mattress for a full-size futon is 54 by 75 inches. Frames for a queen-sized futon measure 60 by 80 inches, mattresses measure 60 by 80 inches, and sheets measure 63 by 83 inches.

We'll break down the various futon styles and provide specifics on futon frame, mattress, and sheet measurements below.

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Various Futon Designs

A single-fold (A), a loveseat with an extension (B), and a double-fold (C) futon frame are the most common kinds. A product of The Futon Company's photography  

Bi-fold futons, loveseat futons, and tri-fold futons are the three most common styles. There are a wide variety of multipurpose futon designs within these overarching categories, including couch-style, bunk-bed, and armless designs.  

Most futons are supported by bi-fold frames, as shown in image A above. One is the seat cushion, and the other is the backrest. Since the entire mattress surface area can be used for seating with a bi-fold futon, it can seat more people than other types of futons. The one-piece mattress that goes with these futons folds in half and is available in twin, full, queen, and chair sizes.

For comparison's sake, image B above shows a loveseat, which is fashioned after a conventional sofa. They are a wonderful piece of furniture for maximizing usable space in small rooms. When not in use, the futon's extension section folds neatly into the main frame for storage.  

As seen in image C above, tri-fold futon frames consist of a back, a seat, and an ottoman that may be attached to the frame or purchased separately. When not in use as seating, a tri-fold futon's mattress can be folded in half, creating a smaller mattress and a larger one. When used as a couch, this type of futon frame necessitates a thin mattress to allow for proper folding.

There are two ways to incorporate an ottoman into a futon: either as a built-in feature (top) or as an additional accessory (bottom). Photos from a Futon Store

If your futon doesn't come with an ottoman already attached to the frame, you can purchase one separately. A padded ottoman can be used in a variety of ways, including as a footrest, a table, an extra seat, or just as a decorative accent. You can make your futon bigger by attaching an ottoman to the bottom of the frame. The ottoman can be folded up and stowed away inside the futon's frame or tucked away under another piece of furniture.  

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Frames for futons come in a variety of sizes.

It's true that a futon mattress' overall dimensions aren't drastically different from those of a standard mattress, but that there are also split sizes available to accommodate various futon designs. The size of the futon you buy should reflect your preferences and sleeping space. Full- or queen-sized futons are a great option if you need extra seating. Consider a split or ottoman futon if you need a spare bed that doesn't take up much room. A futon the size of a chair or a twin mattress would be ideal if you have limited space. But what exactly are the dimensions of the various futon frames?

The dimensions of the futon frame vary depending on the size of the futon: 39" x 75", 75" x 54", or 80" x 60" for a queen. Consult the data and graphs below for more details on futon dimensions.

Common futon sizes include twin, full, queen, and chair. Frames for these seating options are also available in the form of a loveseat, with or without an ottoman. Featured Image Source: Multipurpose Home Furnishings

Twin futons have an overall size of 75" x 39". One is a standard twin size (39" x 54"), and the other is a smaller ottoman size (39" x 21") The two mattresses can be put together to form a twin-sized bed.  

Standard mattresses for full-size futons are 75 inches wide by 54 inches long. A full size bed can be made from a loveseat with a full split mattress (54 inches wide by 54 inches long) and an ottoman mattress (54 inches wide by 21 inches long).  

A standard 80" x 60" futon mattress fits in a frame designated for a queen futon. Combining a queen-sized (60" x 54") split mattress with an ottoman of the same size (60" x 26") yields a queen-sized bed.  

The width of the arms and the height of the frame's back are two important specs to look for when shopping for a futon. The futon's overall footprint can be estimated by combining the frame's overall dimensions with those of the armrests.

Frame sizes for various futons are shown in the table below.

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The Folded Futon Size vs. Unfolded 

Futons can be completely transformed into beds when opened. This requires more room on the ground than when they're folded up and put to use as a couch.

Listed below are three futons along with their folded and expanded dimensions:

Futon Mattresses Come in a Variety of Sizes

The three most common futon mattress sizes are twin, full, and queen. Although uncommon, king-sized futon mattresses are also obtainable. The dimensions of a futon mattress must match those of the futon frame. For instance, a bi-fold futon frame's width is proportional to the length of the futon mattress, while a tri-fold frame's width is proportional to the breadth of the mattress. However, I'm curious about the dimensions of the various futon mattresses.

Twin futon mattresses measure 39" x 75", full futon mattresses measure 75" x 54", and queen futon mattresses measure 80" x 60".

As a result of their thinness, traditional Japanese futon mattresses are easily folded and stored. Western-style futon mattresses, on the other hand, are thicker than Japanese futon mattresses because they sit on a frame rather than the floor.  

The adaptability of futons led to their rapid rise in popularity. Their compact size (after folding or rolling, they measure between 6 and 8 inches in height) makes them convenient for stowing away. When compared, traditional mattresses are much more cumbersome and awkward to relocate. The length and width of a futon are comparable to those of a standard mattress, but the support provided by a futon is significantly lower. See this research for more on how well futons can support your body.

Different futon mattress sizes are shown below:

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When Using A Futon, Should You Use Sheets

To be sure, futons require a bed cover. Similar to traditional mattresses, futons benefit from having a cover or sheet placed over them. Because of the wide range of available futon sheet sizes, it is possible to dress your futon with the appropriate bedding.

You can find futon covers in a wide range of fabrics and colors to complement your existing decor. The covers of some products even have zippers, allowing for quick removal and washing. These protectors are great for preventing dirt, dust mites, spills, and stains on your mattress. Also, they shield your mattress from wear and tear, extending its useful life. The National Sagamihara Hospital Research Center for Rheumato-Allergy conducted a study on the efficacy of futon covers at preventing the accumulation of dust and other allergens on futons.

What Size Sheets Go With Futons?

The length and width of your futon mattress should be the first considerations when shopping for sheets. If your futon is a twin size and measures 39 inches by 75 inches, the sheets should be the same size. If you're looking for a futon sheet, you may be wondering:

Sheets that are intended for use with futons come in three standard sizes: 43" x 72" for twin-size futons, 85" x 57" for full-size futons, and 83" x 63" for queen-size futons.

When shopping for futon sheets, it's also important to think about the depth of your mattress. Consider the mattress's "loft," or thickness, as this can affect how your sheets fit. It is recommended to add two or three inches to the loft measurement of your futon so that the sheets have some room to tuck in around the mattress's outer edges. When you toss and turn in your sleep, the elastic corners of your sheets will stay in place thanks to the elastic bands. Sheets should always be a few inches larger than the mattress.

See the table below for a variety of futon sheet sizes: