Bunk Beds and Lofts Lofts and bunk beds are the most popular piece of children's bedroom furniture. With a variety of configurations, these double-duty pieces can add style and function to any kid's room. The most common bunk bed consists of two twin-sized mattresses stacked on top of each other. https://www.bunkbedsstore.uk/products/vonhaus-stylish-kids-bunk-bed-space-saving-solution