A sofa bed is a versatile piece of furniture that combines a sofa and a bed in one design. It typically features a foldable mattress that can be pulled out from the sofa frame, allowing it to transform from a seating area into a sleeping space. This makes it an ideal choice for small living areas or guest rooms where space is limited. Sofa beds come in various styles, sizes, and materials, catering to different tastes and needs. They can be found in both modern and traditional designs, making them suitable for any home decor. Many models also offer additional features, such as built-in storage for bedding.