How to find the right bed height for your body, what determines it, and simple ways to raise or lower a bed that sits wrong.
Bed height is one of those details nobody thinks about until it is wrong. You buy a thicker mattress, add a foundation, and suddenly you are hopping to get in. Or you switch to a low platform frame and find yourself hauling yourself up off the floor every morning. Height affects how easy the bed is to get in and out of, how the room looks, and whether your nightstand and bedding still work. Here is how to figure out the right number for you.
For most adults, the sweet spot is roughly 24 to 25 inches from the floor to the top of the mattress. That is the height where, sitting on the edge, your feet rest flat on the floor with your knees bent at about 90 degrees and your hips level with or slightly above your knees. Anything from about 22 to 27 inches works comfortably for most people. Below 20 inches starts to feel low for anyone with knee or hip issues, and above 30 inches usually means climbing.
That said, the "right" height is personal. A tall person needs more height than a short one to hit that same knee angle, which is why a single standard number does not serve everyone.
Skip the averages and measure yourself. It takes a minute:
If your number comes out around 21 inches, a low platform setup will suit you. If it comes out around 27, you want a taller frame or a standard-profile foundation rather than a low-profile one. When measuring an existing bed, always measure to the top of the mattress, not the top of the frame rail, since that is the surface you actually sit on.
Total height is the sum of three things, and you can adjust any of them.
This is the biggest lever. A basic steel bed frame typically puts the sleeping deck around 7 to 8 inches off the floor. Platform beds run lower, often 6 to 12 inches to the top of the slats. Storage beds and taller upholstered frames can sit noticeably higher. Adjustable bases vary widely, and many now come with adjustable legs specifically so you can dial in the height. See what is available in our adjustable bed collection and our guide to choosing a bed frame.
A standard foundation adds roughly 9 inches. A low-profile foundation adds roughly 5 inches. Swapping a standard foundation for a low-profile one is the single easiest way to drop a too-tall bed by several inches without replacing anything else. A bunkie board adds only about 1.5 to 2 inches, so it is the choice when you want support with almost no added height. Our guide to box springs, foundations and platform bases covers which one your mattress actually needs, and you can browse options in the foundations collection.
Mattress thickness commonly runs from about 8 inches to 16 inches. Going from a 10-inch mattress to a 14-inch one adds 4 inches of bed height, which is enough to change how the bed feels to get into. If you are shopping for thickness, our mattress thickness guide explains what the extra inches actually buy you in comfort terms.
This is where height stops being a style question. Getting out of a bed that is too low means pushing up from a deep squat, which is hard on knees and hips. Getting out of one that is too high means dropping down, which is hard on ankles and increases the chance of an unsteady landing.
For seniors, people recovering from hip or knee surgery, and anyone with mobility limitations, aim for a height where the feet make solid contact with the floor while seated on the edge, with knees at or slightly below hip level. In practice that usually lands between 20 and 25 inches. Sitting slightly higher than your knees makes standing up meaningfully easier, so if you are choosing between two options, the taller one is often the safer bet as long as the feet still reach the floor.
An adjustable base is worth considering here for a separate reason: raising the head of the bed makes it much easier to swing your legs out and stand. Our roundup of the best adjustable beds goes through the options, and the best mattresses for older adults covers the surface itself.
Two practical details people forget. First, your nightstand should sit within a couple of inches of the top of the mattress, ideally level with it or slightly below, so you can reach a glass of water without looking. If you change bed height significantly, check the nightstand still works. Second, deep mattresses need deep-pocket sheets. A 14-inch or taller mattress will pull standard-depth fitted sheets off the corners all night, which is a small annoyance that becomes a large one.
If you are still working out the size as well as the height, our bed frame sizes guide and room measuring guide are the right starting points.
Most beds sold today land between 22 and 26 inches from the floor to the top of the mattress, with roughly 24 to 25 inches being the most common. That figure has crept upward over the years as mattresses have gotten thicker, so an older bed in the same room may sit noticeably lower.
The height that lets you sit on the edge with both feet flat on the floor and knees bent at about 90 degrees. Measure from the floor to the top of your thigh while seated in a firm chair, and match that number. For most adults it falls between 22 and 27 inches.
Generally 20 to 25 inches, chosen so the feet rest solidly on the floor while seated on the edge and the hips sit level with or slightly above the knees. Sitting slightly higher than knee level makes standing up easier. If mobility is a concern, an adjustable base that raises the head of the bed helps considerably with getting in and out.
Bed risers are the fastest and cheapest option, adding roughly 3 to 8 inches. Swapping a low-profile foundation for a standard-profile one adds about 4 inches. A mattress topper adds 2 to 4 inches and changes the feel at the same time. A thicker mattress works too, though it is the largest expense.
Yes, and the range is wide. Basic steel frames put the deck around 7 to 8 inches up, platform beds typically range from 6 to 12 inches to the top of the slats, and storage or upholstered frames often sit higher. Many metal frames and adjustable bases also have height-adjustable or removable legs.
Sit on the edge. If your feet dangle without reaching the floor, or you have to slide or drop down to stand up, the bed is too tall for you. The same test in reverse applies to a bed that is too low: if your knees sit noticeably above your hips and you have to push hard to stand, it is too short.
Bed height is easy to fix before you buy and annoying to fix afterward. If you are putting together a new setup, come sit on it. All five of our Los Angeles showrooms let you try mattress, foundation and frame combinations together so you can check the height with your own feet on the floor rather than doing arithmetic on a product page. Browse foundations to see how much each profile adds, or take our sleep quiz to narrow down the mattress first.
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