The 3D object that encompasses the features of furniture, a bed, and a mattress can be described as a well-crafted and stylish piece designed for ultimate comfort and relaxation. The furniture is built to accommodate a sleeping area, functioning as a bed with a sturdy frame, headboard, and footboard. Sitting atop the bed frame is a high-quality mattress, ensuring restful sleep and support for the body. The mattress is made with soft and breathable materials, offering a plush surface that molds to the body's contours for an incredibly comfortable experience. Overall, this 3D object combines the functionality of furniture with the essential elements of a bed and a cozy mattress, providing the perfect oasis for rejuvenation and peaceful slumber.