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Sleeper Sofa Sizing Guide and FAQs (2024)

To find your perfect sleeper, start by deciding on the size you want. Sometimes, sizes can overlap between options. Our sleeper sofas come in 7 core sizes: Chair (Cot), Loveseat (Twin), Full, Queen, King, Chaise Section, and True Section. The size is determined by the mattress inside.

There are two factors that determine the dimensions of a sleeper sofa. The first is the size of the bed inside. The second factor is the style of the sofa, with sofas that have smaller arms being more compact than those with larger arms. We have provided a table showing the overall dimensions (length) for all our sleeper sofa sizes.

SizeSleeper Dimension RangesMattress Width
Chair (Cot) Pullout Beds37" to 65"30" to 34"
Twin (Loveseat) Sleeper Sofas47" to 68"36" to 39"
Full Sofa Beds58" to 83"52" to 55"
Queen Sleeper Sofas64" to 96"58" to 62"
King Sleeper Sofas80" to 92"74" to 76"
Chaise Sectional Sleeper Sofas99" x 59" to 132" x 86"52" to 66"
True Sectional Sofa Beds113" x 87" to 125" x 65"52" to 66"
Ottoman (Sleepers)44" to 68"30" to 54"

How to Measure Your Sofa Bed

When ordering a replacement sofa bed mattress, it is crucial to measure the mechanism of your sofa bed accurately. While some may consider measuring their existing mattress, this may not be the best approach, as mattresses can change in dimensions over time due to wear and tear. To ensure the perfect fit, it is recommended to measure the width and length of the inside frame of your sofa bed and round that measurement down to the nearest inch. Not only does this guarantee accuracy, but it also allows for an easier shopping experience without worrying about returns or ill-fitting mattresses.

Measuring for a sofa mattress is a straightforward process that anyone can do. By diligently measuring the mechanism and providing accurate dimensions, you can find a replacement mattress that fits snugly into your sofa bed frame. It is worth noting that while this task may seem simple and hassle-free, it pales in comparison to replacing a boat mattress on a yacht! So, take solace in the fact that you are dealing with something smaller and more manageable when choosing an ideal size for your sofa bed mattress. With all common sizes readily available from, finding the perfect fit should be a breeze, ensuring both comfort and satisfaction for years to come.


1. Can I use a regular mattress on a sleeper sofa?

While it is possible to use a regular mattress on a sleeper sofa, it may not be the most practical option. Regular mattresses are typically thicker and heavier, which can make it difficult to fold and unfold the sleeper sofa properly. Additionally, regular mattresses may not fit properly within the frame of the sleeper sofa, resulting in an uncomfortable sleeping surface. It is recommended to use a mattress specifically designed for sleeper sofas, as they are typically thinner and more flexible.

2. How long do sleeper sofa mattresses usually last?

The lifespan of a sleeper sofa mattress can vary depending on several factors, including quality, usage, and maintenance. On average, a high-quality sleeper sofa mattress can last anywhere from 5 to 10 years with proper care. However, some mattresses may need to be replaced sooner if they start to lose their shape or support. Regular flipping and rotating of the mattress can help prolong its lifespan.

3. Can I upgrade the mattress on my existing sleeper sofa?

In some cases, it may be possible to upgrade the mattress on your existing sleeper sofa. However, this will depend on the specific design and construction of your sleeper sofa. Some models may allow for mattress replacement or customization, while others may not. It is best to consult the manufacturer or retailer of your sleeper sofa to inquire about upgrading the mattress.

4. How do I clean and maintain a sleeper sofa mattress?

The cleaning and maintenance requirements of a sleeper sofa mattress will vary depending on the materials used. For mattresses with removable covers, it is recommended to follow the manufacturer’s instructions for cleaning. Generally, removable covers can be machine-washed or spot-cleaned using a mild detergent. It is important to allow the cover to fully dry before putting it back on the mattress.

For mattresses without removable covers, regular vacuuming can help remove dust and debris. If there are any stains or spills, it is best to spot-clean them immediately using a mild detergent and a clean cloth. Avoid using harsh chemicals or cleaners that may damage the mattress material. It is also important to regularly flip and rotate the mattress to maintain its shape and support.

5. Can I use a sleeper sofa as my primary bed?

While sleeper sofas can provide a convenient sleeping option for guests, they may not be suitable as a primary bed for everyday use. The mattresses in sleeper sofas are typically thinner and less supportive compared to regular mattresses, which may not provide the necessary comfort and support for long-term use. Additionally, the folding mechanism of a sleeper sofa can cause wear and tear on the mattress over time.

If you plan on using a sleeper sofa as your primary bed, it is recommended to invest in a high-quality mattress that offers adequate support and comfort. You may also want to consider a sleeper sofa with a more durable folding mechanism to minimize wear and tear on the mattress.

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