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A full size mattress measures 54" x 75", giving 16 more inches of width than a twin. It's the most popular choice for single sleepers in studio apartments, smaller bedrooms, teenage bedrooms, and guest rooms where a queen would take up too much space. Shop the best full size 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 full size mattress for you? Try our personalized mattress quiz.
A full size mattress measures 54 inches wide and 75 inches long. It's the same length as a standard twin but 16 inches wider, making it more spacious for single sleepers.
Full size mattresses used to be the standard for couples back in the 1940s, which is why it's also called "double" sometimes, but the queen has since taken over that role. Today, a full mattress is best suited for a single adult who wants more sleeping space than what a twin offers.
Two adults sharing a full bed will find it too cramped, as it only offers 27 inches of space per sleeper. But for a solo sleeper, it's a practical size that doesn't take up more space/budget than necessary.
Here's a table to help you compare full mattresses with other mattress sizes:
| Mattress Size | Dimensions (W x L) | Best For |
|---|---|---|
| Full | 54 x 75 inches | Solo sleepers who want extra room to spread out, growing teens, guest rooms |
| Twin | 38 x 75 inches | Toddlers, young kids, bunk beds, daybeds, small guest rooms |
| Twin XL | 38 x 80 inches | Tall teenagers, college dorms, single adults over 6 feet tall, split king setups |
| 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 full size mattress if:
You should skip a full and go with a full XL mattress if you're taller than 6 feet. A full is only 75 inches long, so tall sleepers will feel the difference. The full XL adds 5 inches of length. And if you're sharing the bed regularly with a partner, go straight to a queen mattress, since it's the best size for couples.
Turmerry mattresses are made with high-quality materials, including certified organic latex, cotton, wool, and pocketed coils. With benefits ranging from responsive support and contouring pressure relief to breathable cooling, they're some of the best full size mattresses you can find today.
Latex responds to your movements instantly, pushing back as you shift positions. Turmerry mattresses are 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 especially useful for side sleepers who concentrate weight through those areas for hours at a time.
Latex has an open-cell structure that lets air move through it, and our perforated layers improve this further. The wool layer wicks moisture and buffers heat, keeping you warmer in winter and cooler in summer without synthetic cooling additives.
Latex absorbs motion well, so a child or pet jumping on the bed won't disturb your sleep. The edges hold up too. Dunlop latex is dense enough to stay firm at the borders, so you can use the full 54 inches of sleeping surface without the sides compressing under you.
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 investment 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 full size mattresses are a good fit 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 full size mattress ships free across the US and comes with a 120-night sleep trial. That's enough time to know whether the mattress is genuinely working for you, not just how it feels the first week.
A full size bed needs at least 9 x 10 feet of floor space to leave enough room to move around the bed. If you're adding a nightstand, dresser, desk, etc., you'll want more than the minimum.
Full size mattresses are priced in the middle of the standard size range. You can find decent basic options between $500 and $1,100. Premium latex and hybrid models start around $1,100 and go up to $1,700 or more. Turmerry's organic latex full mattresses start at $1,199, which puts them at the lower end of the premium range for materials that last much longer than memory foam alternatives.
One thing worth planning for: if you're upgrading from a twin, your current sheets and mattress protector won't fit a full size bed. Budget for new bedding and a new bed frame alongside the mattress.
These are the four most popular full size 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 go for 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.
Full size mattresses sit in the mid-range of standard sizes. Decent options are available for around $800 to $1,200. Factor in the full setup cost: a bed frame and full size bedding on top of the mattress. If you're upgrading from a twin, your current sheets won't fit, so you'll definitely have to budget for new bedding too.
A full size mattress is 54 inches wide, which is more forgiving than a twin but still narrow enough that motion transfers if you share the bed. Latex and memory foam absorb movement really well. Pocketed coils in a hybrid isolate motion well too, since each coil moves independently. Interconnected innerspring coils transfer motion across the whole surface.
On a 54-inch mattress, weak edges cut into your usable sleep surface more than they would on a queen or king. So always look for good edge support when buying a full bed. 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 for people with a similar body type and sleep position. Reviews from people who've had the mattress for two or more years are the most useful, since that's when durability problems tend to show up.
The right bedding makes a real difference in how your full size mattress feels night to night. Here's what we suggest:
Your mattress needs a stable, even base. Without one, even a good mattress will sag faster than it should. Platform frames work best for latex, memory foam, and hybrid mattresses.
A topper lets you adjust the feel of your mattress without replacing it. Too firm, add a softer topper. Too soft, go with a firmer one. Three inches is the right thickness for most people.
A mattress pad sits between your sheet and mattress, adding a thin layer of cushioning and protecting the surface from daily wear. It won't change the feel of your mattress much, but it keeps it cleaner for longer.
A waterproof protector keeps spills, sweat, dust mites, and allergens out of your mattress. Most mattress warranties are voided by moisture damage, so a protector helps keep your coverage intact, too.
Cotton sheets are breathable, widely available, and get softer with every wash. Check the pocket depth before buying to make sure the sheet fits your mattress thickness.
Your comforter is your main source of warmth through the night. Wool is a good all-season option since it regulates temperature without overheating you.
A duvet cover goes over your comforter to protect it and make it easy to wash. Since it's removable, you can clean it regularly without having to wash the comforter itself.
