Twin beds are two separate beds that are typically the same size, measuring 38 inches wide by 75 inches long. They are commonly used in children's rooms, guest rooms, or shared spaces, allowing two people to sleep comfortably without sharing a bed. These beds are often found in hotels and dormitories, providing flexibility for different sleeping arrangements. Twin beds can be paired together to create a larger sleeping surface, or they can be used individually. They are a popular choice for those who prefer personal space while sleeping.