Twin Mattress Size | Twin Bed Mattresses

Twin Mattress Size Collection

Twin mattresses measure 38 inches wide by 75 inches long, making them the ideal choice for single sleepers, children's bedrooms, bunk beds, daybeds, and guest rooms. As the most compact standard mattress size, twin beds fit comfortably in smaller spaces while providing ample sleeping surface for one person.

Twin Mattress Dimensions & Specifications

The standard twin mattress size is 38" W x 75" L, offering 2,850 square inches of sleeping space. This size is recommended for sleepers up to 6 feet tall and weighing up to 250 pounds for optimal comfort and support.

Who Should Choose a Twin Size Mattress?

• Children and teenagers transitioning from cribs or toddler beds
• Single adults living in apartments or studio spaces
• Guest rooms with limited square footage
• Bunk bed and trundle bed configurations
• College dormitories (note: some require Twin XL at 38" x 80")

Room Size Requirements

A twin mattress works best in bedrooms measuring at least 7' x 10' to allow adequate walking space around the bed. For rooms with two twin beds, a minimum width of 10 feet is recommended to maintain comfortable spacing between beds.

Twin vs. Twin XL

While standard twin mattresses measure 75 inches in length, Twin XL mattresses add 5 extra inches (80" total length) to accommodate taller sleepers. Twin XL is the standard size used in most college dormitories and is increasingly popular for teenagers and adults over 6 feet tall.