Mattress Size Chart – Twin VS. Twin XL

Research what size mattress might work best for you and your bedroom space.

If you are trying to decide if a Twin or Twin XL mattress is better for you and your space. Or just trying to learn what the exact differences in sizes are than this is a great place to start. This Twin vs Twin XL mattress size guide will look specifically at these two sizes.

Type	Size	Suitable for
Twin	38″x74″	Children who are coming out or a crib or toddler bed. This option is great for kids or adults who are working with limited space. *This is the standard size fro loft or bunk beds.
Twin XL	38″x80″	This size is great for kids or adults who are tall. This size is also typical for dorm room bunk beds. *Also common is using two twin XL’s to create a split king, most commonly uses for split king adjustable bases.

Twin

twin
This size mattress is 38″x75″. Measuring with a tape typically shows between 38-39″ or 74-75″. They are not always exact.

The Twin Size Mattress is the quintessential mattress for kids that outgrew their crib or toddler bed.

This is also the most common size for as bunk beds & day beds. This size is also ideal for shorter stature adults who have limited space.

*Bear in mind if you measure most mattresses they can appear off by about an inch or so in one direction or the other.

Twin XL (Xtra Long)

twin XL

This size mattress is 38″x 80″. Measuring with a tape typically shows between 38-39″ or 79-80″. They are not always exact.

NOTE: This option is also typically what is used for s Split King. Often used on adjustable bases so each side can be moved independently from the other.

The Twin XL Size Mattress is the best mattress for kids that outgrew their crib or toddler bed who are tall and have limited room space. Also a great choice for adults who have limited space and require more length than a regular twin for leg room.

This is also the most common size for dorm room bunk beds and lofts.

*Bear in mind if you measure most mattresses they can appear off by about an inch or so in one direction or the other.

Conclusion

When trying to find the right mattress size to fit the needs of you or your family, these are a few things to have in mind.

If upgrading for adults to a larger size be sure to measure your room to make sure you can accommodate the size you want.
If you are upgrading your child’s mattress be mindful of how tall they may get and if you want to bypass a twin size for a full or queen if height is prominent in your family.
Third, who will be sleeping in it? If it’s just you and you are not tall, you may be good with a twin xl r full/double size. But, if you are a couple, single with a child or pet you may want to strongly consider a queen or king.
Keep in mind if you are looking to buy a new bedroom set or upgrade in mattress size, the larger you go typically the bed frame, beds, platforms, etc will also become more expensive to buy. Spending more now to get the comfort and space you want is generally not a bad investment. Unless it doesn’t fit in your space, you will never say “I wish I had a smaller mattress”.

Now that you have an idea of what size mattress could work great for you take some time to see our other guides and which mattress might work best for you.