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A twin XL mattress measures 38" x 80", making it 5 inches longer than a standard twin. It's the go-to size for taller single sleepers, college dorm rooms, and teenagers who've outgrown a standard twin but don't need the extra width of a full or a queen. Shop the best twin XL mattresses at Turmerry! Made with GOLS-certified organic latex, they're affordable and built to last well over a decade. Every order comes with free shipping and a 120-night trial.
Want help finding the best twin mattress for you? Try our personalized mattress quiz.
A twin XL mattress measures 38 inches wide and 80 inches long. It has the same narrow width as a regular twin but is 5 inches longer, providing enough extra length to comfortably accommodate sleepers taller than 6 feet. This is why it's the standard mattress size for college dorm rooms.
Twin XL is the natural next step for teenagers who've outgrown their 75-inch-long beds. It's also a good fit for single adults in smaller spaces who need the length.
Two adults sharing a twin XL will find it too cramped, but for a single sleeper who needs the length, it gets the job done without the added cost of a larger size.
Here's a table to help you compare twin XL mattresses with other mattress sizes:
| Mattress Size | Dimensions (W x L) | Best For |
|---|---|---|
| Twin XL | 38 x 80 inches | Tall teenagers, college dorms, single adults over 6 feet tall, split king setups |
| Twin | 38 x 75 inches | Toddlers, young kids, bunk beds, daybeds, small guest rooms |
| Full | 54 x 75 inches | Solo sleepers who want extra room to spread out, growing teens, guest rooms |
| Queen | 60 x 80 inches | Couples, solo sleepers who like extra space, standard master bedrooms (most popular size) |
| King | 76 x 80 inches | Couples who want maximum personal space, families who co-sleep with kids/pets |
| California King | 72 x 84 inches | Tall couples (over 6 feet) who prioritize extra legroom |
You should buy a twin XL mattress if:
You should skip a twin XL and go with a full size mattress (or a full XL mattress) if you're an adult who moves around a lot at night. The full gives you 16 more inches of width, but it's also 5 inches shorter than a twin XL. The full XL makes up for that 5 inches of length.
And if you're sharing the bed with a partner, jump straight to a queen mattress, because neither a twin XL nor a full is built for two adults.
Turmerry's mattresses are made with high-quality materials, including certified organic latex, cotton, wool, and pocketed coils. With benefits like responsive support, pressure relief, cooling, durability, and more, they're some of the best twin XL mattresses you can find today.
Latex responds to your movements instantly, pushing back as you shift positions. Turmerry mattresses are also built with 7-zone support, firmer under heavier areas like the hips and lower back, softer under lighter areas like the shoulders and thighs. Your spine stays aligned through the night without any single pressure point taking too much load.
Latex contours closely to the shape of your body, distributing weight evenly across the surface. This reduces pressure buildup at the shoulders and hips, which is needed most for side sleepers who concentrate weight through those areas for hours at a time.
Latex has an open-cell structure that allows air to move through it freely, and our perforated latex layers improve this further. The wool layer wicks moisture and buffers heat, keeping you warmer in winter and cooler in summer without any synthetic cooling additives.
Latex absorbs motion well, so a child tossing and turning or a pet jumping up won't shake the whole mattress. The edges hold up too. Dunlop latex is dense enough that they don't sag like cheap foam, so you can use the full 38 inches of sleeping surface without the edges giving way.
Dunlop latex doesn't sag the way memory foam and polyfoam do. A well-maintained Turmerry mattress lasts well over a decade, which makes it a better long-term value than cheaper options that need replacing every few years.
Latex is naturally resistant to dust mites, mold, and mildew. Combined with the organic cotton and wool cover, Turmerry's twin XL mattresses are a solid choice for anyone with allergies or chemical sensitivities.
Turmerry mattresses carry GOLS and OEKO-TEX certifications for the organic latex, GOTS for the organic cotton, and LGA for overall quality. Every certification is third-party verified, confirming the materials are free from harmful substances and built to last.
Every twin XL mattress ships free across the US and comes with a 120-night sleep trial. That's enough time to test the mattress and know whether it's right for you or not.
Your room should be at least 7 x 10 feet to fit a twin XL comfortably with enough clearance to move around. Bigger rooms give you room for furniture.
On the budget side, twin XL mattresses are one of the more affordable standard sizes. Basic options start around $350 and can go up to $800, while premium latex and hybrid models cost $850 to $1,300 or more. Turmerry's organic latex twin XL mattresses start at $799, priced competitively but built with materials that outlast memory foam by years.
One thing people overlook: twin XL bedding is a specific size. Standard twin sheets won't fit, so factor in the cost of a new bed frame and bedding when budgeting.
These are the four most popular twin XL mattress types you'll find on the market:
Latex mattresses are made from natural or synthetic rubber. Natural Dunlop latex is the most durable option available, dense and responsive, holding its support for well over a decade. It sleeps cooler than memory foam, contours to the body for pressure relief, and is naturally hypoallergenic. The highest upfront cost of the four, but its lifespan makes it the best long-term value by a significant margin.
Memory foam contours closely to the body and excels at pressure relief, making it a popular choice for side sleepers. But there are also big trade-offs. Memory foam traps body heat, makes switching positions at night feel like an effort, and sags faster than latex. It's fine for the short-term budget, but not ideal for long-term comfort.
Hybrid mattresses pair a pocketed coil support layer with a memory foam or latex comfort layer on top. The coils add bounce and airflow, while the comfort layer handles pressure relief. A solid middle-ground option for sleepers who want contouring with better edge support and breathability than an all-foam mattress. Heavier and pricier than memory foam, but more durable.
Innerspring mattresses are the most traditional type, built around interconnected coils with thin comfort layers on top. Also usually the most affordable option. The downsides are limited pressure relief, poor motion isolation, and a shorter lifespan than latex and hybrid mattresses.
Consider all of these factors before finalizing your purchase:
Your sleep position and body weight together determine the right firmness. Side sleepers need a softer mattress to cushion the shoulder and hip. Back sleepers need a medium-firm mattress to keep the spine aligned. Stomach sleepers need a firmer mattress to prevent the hips from sinking. Lightweight sleepers need softer cushioning, heavyweight sleepers need firmer support, and average-weight sleepers do well in the middle.
Around 8 to 12 inches is the perfect thickness range for adults. Anything under 8 inches works for kids and bunk beds where height clearance is required. Heavier sleepers should lean toward thicker beds. Thickness also affects how easy it is to get in and out of bed, which is something to keep in mind for older sleepers.
Natural latex is the most durable option, staying supportive for 15 to 20 years without significant compression. Memory foam contours closely but traps heat and sags faster. Hybrids pair pocketed coils with a memory foam or latex comfort layer, giving you better airflow and edge support than all-foam beds. Innerspring is the most affordable but wears out quickest and offers the least pressure relief.
If you're a hot sleeper, you'll want to go for naturally breathable materials like latex and cotton. Innerspring and hybrid mattresses also allow more air circulation than memory foam. A wool layer helps further, since wool naturally wicks moisture. Memory foam is the worst option for hot sleepers unless it has significant cooling features, like in gel-infused memory foam.
Twin XL is one of the more affordable standard sizes. Decent mid-range and high-end options can be found for around $550 to $800. Factor in the full setup: a bed frame and twin XL-specific bedding on top of the mattress cost. Standard twin sheets don't fit a twin XL, so you can't always repurpose what you already have.
At 38 inches wide, a twin XL transfers motion more easily than larger sizes. If the bed is occasionally shared, this is worth considering. Latex and memory foam absorb movement well. Pocketed coils in a hybrid help too since each coil moves independently. Interconnected innerspring coils transfer motion across the whole surface.
Weak edges on a 38-inch mattress reduce your usable sleep surface more than they would on a larger size. So always look for good edge support when buying a twin XL. Latex is dense enough to hold its shape at the borders. Hybrids with reinforced perimeter coils do this even better. Memory foam tends to compress at the edges under body weight.
Latex mattresses last 15 to 20 years with proper care. Quality hybrid mattresses last 8 to 10 years or more. Memory foam and innerspring mattresses start sagging within 5 to 7 years. If you're looking at an all-foam mattress, check the base foam density, since low-density foam breaks down faster than high-density.
Your body needs a few weeks to adjust to a new mattress, so a trial period under 60 nights isn't enough to make a fair call. Look for 60-90 nights minimum. For warranty, 10 years is a reasonable baseline for latex and hybrid mattresses. Make sure to read what the warranty fully covers.
A review from a 130-lb side sleeper won't tell you much if you're a 220-lb back sleeper. Filter reviews by body type and sleep position. Reviews from people who've had the mattress for two or more years are also really useful, since that's when durability problems tend to show up in cheaper mattresses.
The right bedding makes a real difference in how your twin XL mattress feels night to night. Here's what we suggest:
A twin XL bed frame gives your mattress a stable, even base and prevents it from sagging prematurely. Platform frames work best for latex, memory foam, and hybrid mattresses. If you have an innerspring, a box spring works just fine.
If your mattress feels too firm or too soft, a twin XL topper can adjust the feel without replacing the whole mattress. A 2- to 3-inch topper is enough to make a difference without making the bed too high.
A twin XL mattress pad adds a light layer of cushioning and reduces everyday wear. It won't change the feel dramatically, so it works best when you're happy with your mattress and just want some added softness and protection.
A twin XL mattress protector guards against spills, stains, moisture, and allergens. Put one on from day one, because washing a protector is far easier than dealing with a stained mattress. Waterproof options are especially worth it for children's beds.
Twin XL sheets provide a comfortable barrier between your body and your mattress/comforter. Cotton sheets are breathable and get softer with every wash. Linen sheets breathe even better but feel slightly rougher at first. Whichever you choose, check the pocket depth before buying.
A twin XL comforter is your main source of warmth through the night. Fill material determines how much insulation you get, and wool is a great all-season option since it regulates temperature in both warm and cold conditions.
A twin XL duvet cover protects your comforter and makes it easy to change the look of your bedroom. Since it's removable, washing it is much simpler than cleaning the comforter itself.
