Memory Foam Mattress Sizes
Here is a helpful chart depicting the differences for those who prefer visual comparisons, borrowed from memory foam mattress retailer Amerisleep.com.
Twin – 38’’ wide x 74’’ long
We all know these beauties, most of us spent our formative years calling a twin mattress our own. Good for kid’s rooms and guest rooms, Twin size mattresses are the most affordable of all models. The 74″ length will comfortably accommodate most people up to 5’5″, and the width is sufficient for most people. Some types of mattresses can classify a twin as up to 39″x 75″, so you may notice a slightly smaller footprint if using the same foundation or frame.
Twin XL – 38’’ wide x 80’’ long
While the Twin XL shares the same width as a standard twin, it provides a half-foot extra in length. People between 5’5″ and 6′ should be comfortable on a Twin XL mattress. This is the standard dorm-room size and also fit into dual/split King Size adjustable platforms perfectly, as it is 1/2 of a king size bed. Two Twin XL’s can also be a good option when buying a memory foam mattress for your guest room, as they may be setup separately or pushed together depending on your visitors. Like with the regular twin, some manufacturers may make twins up to 39″ wide.
Full – 54’‘wide x 75’’ long
The junior executive, so to speak, of the mattress world. Full size mattresses are great for when space is at a premium. They also move easier for those who are changing living spaces frequently due to school or work. A standard Full is a good option teens and adults under 5’5″ or so. Even for younger kids, a full can be a good option if you like to read together at night. While in the past couples often purchased a full (aka double), this size only gives each person 27″ in space, which many people will find is not enough. Furthermore, queen sizes offer each person an extra 3″ and are often similar in price to doubles.
Full XL – 54’’ wide x 80’’ long
We can apply the same attractive qualities for choosing a standard Full mattress to the Full XL. Much like it’s XL counterpart in the Twin size department, it shares the same width as a standard, while giving an additional 6-inches of length. While this may still not be enough width for an average-sized pair, it is more than enough for most individuals to be comfortable. Full XL’s are primarily used in adjustable bed bases, as furniture may be difficult to locate for this size.
Queen – 60’‘ wide x 80’’ long
Queen size mattresses are the most popular in America, and it is the most common size found in North American hotels. This size offers length enough for most people under 6′ tall, and 30″ per individual. For average sized couples, singles that love to spread out, and smaller master bedrooms, a queen is a great option. Furniture and linens are widely available and retailers often put some of their best sales on queen size beds.
King – 76’’ wide x 80’’ long
Sometimes bigger is just better. King size mattresses are ideal for those who like a little space or move a lot during the night. These beds, sometimes called eastern kings, are also great for younger families with little kids who don’t like thunder or just love to ruin your Saturday morning when you thought you’d get to sleep in. A standard king gives the same length as a queen, but a full 8″ more per side. Kings are often touted as best for master bedrooms, but you still want to make sure you have enough space remaining in the room for additional furniture and comfortable movement.
California King – 72’‘ wide x 80’’ long
California King, often called CA King, Cal King, or even western king, refers to a bed with same surface space as a king, but different dimensions. The Cal king is 4″ longer than a standard, but also 4″ slimmer, making this bed ideal for people over 6′ tall. If you want to maximize space and are not over 6′ tall, than a standard king might be a better option for the added width and often cheaper prices on mattresses and bedding.
Less Common Memory Foam Mattress Sizes
Memory foam mattress brands can often make a variety of different sizes and even custom beds due to the simple nature of the mattresses’ construction.Here are a couple of other sizes you might find:
- Twin XXL: 38×84
- Full XXL: 54×84
- Split Queen: 30×80 (two sides)
- Split King: 38×80 (two sides, aka Twin XL)
- Split Cal King: 36×84
Before running off and buying whatever size seems best, take into consideration the current size of your box spring or adjustable bed platform. There are few things worse than coming up short on space when a new mattress arrives. Something else to think about is whether or not this is the right time for you to upgrade your furniture or foundation (remember memory foam requires a solid base) or even step up to an adjustable model. Regardless of what you decide, you now know all about memory foam mattress sizes and are ready to pick the best option.
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