The mattress has 406 springs and is made up of 2 layers of foam that are not only soft but also provide support and comfort. We use textiles free from harmful substances, tested according to the Oeko-Tex Standard 100, which are safe and non-allergenic! Headboard with storage space: with a button-tufted headboard and a comfortable padded headboard, this bed is both stylish and cozy. The color of this bed perfectly fits a wide variety of interior styles. Above the bed are open shelves for your phone, the usual tissues, eye masks, and more. Built-in charging function: the charging ports are USB and Type-C. We also have a built-in charging feature that allows you to charge your electronic devices such as smartphones, tablets, or directly at the head of the bed. Sturdy construction: the main frame is made of iron, ensuring the bed's stability with a load capacity of 250 lbs. It provides not only a comfortable place to sleep but also a solid foundation for a restful night. Large storage drawers: With a removable storage drawer under the King metal bed frame on wheels, it offers ample storage space for sheets, off-season clothes, and more. The special lock design ensures that the drawers stay securely in place and provides a reliable storage solution for your belongings. Easy assembly & two boxes for shipping: to reduce the risk of damage, this bed frame is shipped in two boxes that may arrive on different dates. DIY enthusiasts need not worry, as the innovative design makes assembly easy, especially in combination with the clear and comprehensive instructions that accompany each purchase and are also available online.