Different Mattress Sizes and Dimensions

Summary: if you travel frequently, you will notice that the twin mattress size is more common than you first thought. Many budget hotel rooms also have them. Measuring in at 38 inches wide and 75 inches in length, this size is a bit too small for most adults.

For children, twins are really useful. You can use rails along the sides of the bed so they won’t roll off the side. Also, this size of bed can easily fit on a bunk which means you get more floor space. These mattresses are great in a smaller room.

While these are a smaller size, they are useful in many situations. You can put 2 twins side by side to make a bigger bed. To make a combined bed like this more comfortable, you can use separate comforters and/or a king size comforter. You can also use a memory foam topper across both beds to make it feel like big bed. Twins are generally wide enough for adults, but depending on the height of the adult, a twin might not have enough length to be used on a regular basis. A twin can be a great solution for a smaller room, or as a way to have a guest stay long enough to be comfortable, but not so comfortable that they want to stay forever.

Summary: The Twin XL is a great alternative for people who want to save space with their mattress but don’t want to compromise on comfort. The Twin XL is the same length as most standard Queen and King mattresses (80"). Someone who had been used to sleeping on a twin (with 75" length) may really enjoy the extra 5" of a TwinXL.

Twin XL sized beds are something that kids can grow into. TwinXL's are one of the top choices for college dorms because they can accommodate taller people, while still limiting the floor space they take up. Like the twin, twin XLs can be pushed together to make a big king sized bed, while also having the length like a larger bed would.

Summary: The full size mattress is another popular size for people who have a space that is too small for a Queen. A full has a width of 54 inches, and a length of 75 inches. This makes it the same length as a Twin. An important point buyers need to note is that the Full or Double is not twice the width of a Twin, rather it’s just 15” wider.

This is ideally for a single adult or a teen who has company in the form of a pet or a child. It wouldn’t be comfortable for 2 adults to sleep on as there is only 27 inches of space for each person. So if you are looking for a bed for two, you’d be best served going for a Queen sized mattress.

Summary: This is one of the most common mattress sizes for couples. Most homeowners prefer this size because it fits well in rooms that are a variety of sizes, 2 people can sleep on it comfortably, and in most standard bedroom sizes, you have enough room to move around the bed.

It is an additional 21 inches wider than the Twin XL. Make sure that you have enough room in your bedroom to accommodate this. A queen-sized bed is great for a couple who like sleeping a bit close to each other (but still have their own sleeping space). If you're a super light sleeper, this size can sometimes lead to one person waking the other, but there are ways to eliminate motion transfer, if you pick a quality mattress. A queen size can also be a great choice for a single person who has a child or a pet that sleeps in the bed with them sometimes.

Note: Coming in at a whopping 16 inches wider than the queen-sized mattress (76" wide), the standard king size is a very large size. It is the same length as the queen mattress (80" long). A King size is probably the best choice if you are sleeping with a partner and if you have the room to accommodate it.

If you’re sharing the bed, each of you will have 38 inches (assuming you share the space equally). This is basically the same as 2 twins put together, but one solid sleeping surface. When you order big sized mattresses like a king (or even a queen), it's best to double check your room measurements before you make a purchase. If you move around a lot while you sleep, having a king-sized mattress can help to ensure that you have a restful night. People who become used to the space they have with a king-sized mattress often have a hard time when they have to go back to sleeping with a partner on a bed that is smaller (say when staying in a hotel).

Note: The California king-sized mattress is large and significantly different than the regular king variety. It is 4 inches longer and 4 inches narrower than the king. It was basically created for stars and celebrities who liked a bit more height. There is considerable room for people who are taller here, and this is definitely the longest size of mattress that is not custom made.

Again, you need to pay attention to your bedroom size when you are ordering large mattresses like this one. This size, like the other king size, is really comfortable as well. You will not prefer anything else.