A bed is a household item which is utilized as a place to rest or unwind. Most modern beds include a wooden or sturdy metal frame, above this frame is a soft mattress. Beds are available in sizes ranging from small beds for one person to larger sizes that can be used for two or extra large sizes (usually called queen size or king size). Some beds have no cushions or metal frames, others can be folded or extended to increase space. Some furniture for sleeping types are especially a combination of bed and hanging lounger, which can swing for a comfortable sleep.