The twin mattress size is one of the most common and well-known small sizes. Measuring 39 inches wide and 75 inches long, it is perfect for children's rooms, guest rooms, and even college dorms. It's also a popular choice for bunk beds and daybeds. Twin mattresses are great for saving space without sacrificing comfort.1. Twin
A single mattress is another term for a twin mattress. While they have the same dimensions, some people prefer the term "single" to "twin." It's a personal preference, but the important thing to note is that they are the same size and serve the same purpose of providing a small and comfortable sleep space.2. Single
For those who need a twin or single mattress but have limited space, a narrow mattress may be the perfect solution. Measuring 30 inches wide and 75 inches long, it's 9 inches narrower than a standard twin mattress. This size is great for small rooms or studio apartments where every inch counts.3. Narrow
Similar to a narrow mattress, a compact mattress is designed to save space while still providing a comfortable sleep experience. It is slightly wider than a narrow mattress at 33 inches, but still 9 inches narrower than a standard twin mattress. It's a great option for small bedrooms or shared spaces.4. Compact
A petite mattress is perfect for children's rooms or smaller adults who don't need a lot of sleeping space. It measures 36 inches wide and 75 inches long, making it just a few inches wider than a narrow or compact mattress. It's a great option for growing kids who may outgrow a twin mattress.5. Petite
As the name suggests, a small mattress is designed for small spaces. It measures 38 inches wide and 75 inches long, making it just slightly wider than a standard twin mattress. It's a great option for those who want a little extra room to stretch out without taking up too much space in their bedroom.6. Small
A mini mattress is another term for a small mattress. Both terms refer to the same size, which is 38 inches wide and 75 inches long. It's a great option for small bedrooms or guest rooms where space is limited but a comfortable sleep space is still important.7. Mini
A crib mattress is specifically designed for infants and toddlers. It is smaller than a twin mattress, measuring 28 inches wide and 52 inches long. It's important to note that a crib mattress should only be used in a crib and not in a regular bed frame.8. Crib
A bunk mattress is designed to fit perfectly on a bunk bed frame. It is the same size as a twin mattress, measuring 39 inches wide and 75 inches long. This size is great for children's rooms or guest rooms where space is limited and a bunk bed setup is preferred.9. Bunk
A cot mattress is a small and portable mattress that is perfect for camping or guests. It measures 30 inches wide and 75 inches long, making it slightly narrower than a twin mattress. It's a great option for those who want a comfortable sleep experience while on the go.10. Cot