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When selecting the right mattress size, there are several factors to keep in mind, such as bedroom area, shopping budget, and the number of people who plan to sleep on the mattress. Most mattresses sold today are available in six standard sizes: twin, twin extra long (XL), full/double, queen, king, and California king. Additionally, some mattress brands offer models in specialty and/or custom sizes.
This guide will compare the two smallest standard mattress sizes, twin and twin XL. First, let’s look at the key similarities and differences between these two sizes.
|Size||Twin||Twin Extra Long (XL)|
|Standard Width||38″ (3 1/6′)||38″ (3 1/6′)|
|Standard Length||75″ (6 1/4′)||80″ (6 2/3′)|
|Ideal Bedroom Size||Minimum: 7 1/6′ x 10 1/4′||Minimum: 7 1/6′ x 10 2/3′|
|Average Price||$300 to $600||$500 to $750|
|Ideal Sleeping Arrangement||Single sleepers who do not require extra sleeping space in terms of width and are not taller than 6’2″.||Single sleepers who are too tall for a standard Twin, but do not require extra sleeping space in terms of mattress width.|
A twin is the smallest standard mattress size available, measuring thirty-eight inches (38″) wide by seventy-five inches (75″) long. This size is commonly found in college dorms, as well as hospitals, nursing homes, and other healthcare facilities with overnight accommodations.
Benefits of the twin mattress include the following:
Some drawbacks of a twin mattress include the following:
A twin Extra Long, or twin XL, measures eighty inches (80″) long, which is five inches (5″) longer than a standard twin; both a twin and twin XL measure roughly thirty-eight inches (38″) wide. For reference, a twin XL is roughly equivalent to one-half of a standard king-size mattress (76W” x 80L”).
Benefits of a twin XL mattress include the following:
Drawbacks of twin XL mattresses include the following:
While there may not seem like much of a difference, those extra five inches (5”) of length on a twin XL mattress can make huge difference for a tall adult. Both twin and twin XLs are 38” wide, so their only difference is the extra length. Consider the following factors when deciding between a twin or a twin XL.
Due to their narrow size, both the twin and twin XL sizes are best suited for single people who are sleeping alone. Everybody needs sufficient space to curl up into their preferred sleeping position each night, so if you plan on sharing your bed with another adult you should consider moving up to a full/double size mattress instead. Otherwise, a twin model is a tight fit for more than one person.
Your body type can inform which mattress size is best for you. Since both the twin and the twin XL are the same width, your height will make the difference here. Shorter people likely will not miss the extra five inches (5”) that a twin XL provides. As you begin to approach six feet, however, a twin XL becomes an absolute necessity. When shopping for child or teenager, keep in mind that they may outgrow a standard twin mattress.
Even when not shared with another adult, many people have pets or young children who hop into their bed. If you tend to snuggle up with your furry friends, a twin XL mattress will give you just enough extra length to keep a small pet at the end. Though it may be feasible for some, we generally wouldn’t recommend a twin or twin XL mattress for people sleeping with anybody other than themselves. Thus, neither option is ideal if your children like to sleep in your bed.
Whether you sleep on your back, side, or stomach could determine which mattress size is best for you. If you tend to move around a lot or stretch your legs out, a twin XL will provide more length for you to do so. This is especially important for back sleepers who often sleep in a narrow and lengthened position. If you like to curl up into the fetal position or sleep on your side, a twin mattress will feel exactly the same as a twin XL. You might want to visit a mattress store and try out both the twin and twin XL mattress to see which one feels best.
You can’t get smaller than a twin size bed, and even the twin XL mattress is only five inches (5”) longer. Both mattresses should fit fine into any standard size bedroom. If you need to make room for additional sleepers, many bedrooms are large enough to fit two twin or twin XL mattresses.
Twin and twin XL mattresses are the cheapest of all the mattress sizes, with the latter usually around $100 more than the former. Consequently, both of these models are a great option single sleepers who are trying to spend as little money as possible. If you can’t afford one of these sizes, we recommend that you wait for a mattress sales event or check out our Best Mattresses for the Money page.
Because twin and twin XL mattresses have similar dimensions and tend to have comparable price-points, the decision to choose one over the other often comes down to length. A twin XL will comfortably accommodate anyone who stands at 6’7″ or shorter, while a twin will be suitable for anyone who stands 6’2″ or shorter. A twin-size mattress may be the better option for children who sleep in bunk beds that are too short to accommodate twin XL mattresses, but if the child is not using a bunk bed then either size will usually suffice. It’s important to note that neither the twin nor the twin XL will accommodate most couples, nor do they provide extra width space for single sleepers.
This guide draws on things that we have generally found to be true. That being said, mattress size preference is ultimately subjective. If you can’t decide which size is right, we suggest testing out twin and twin XL mattresses in brick-and-mortar stores to see which length feels best. You can also sleep on both sizes for a prolonged period of time by selecting brands and models with sleep trials. Simply return the mattress that is less satisfactory before the trial period ends in order to receive a full refund.