The mattress has 620 springs and is made up of two 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! LED headboard with power outlets & USB ports: One of the most practical features is the built-in power outlet in the headboard, allowing you to charge your mobile phone and tablet before going to bed. Each outlet has two standard EU sockets and two USB ports. App-Control LED RGBW: Unlike ordinary LEDs, this bed is equipped with LEDs that can receive a wider range of signals, a light strip that changes color, and a music mode that enhances the sleeping experience. You can easily control different LED lighting modes via the mobile app. Please note that it is not possible to play music. Storage design: Mobile phones or tablets can be placed on the shelf. Thanks to the support of the gas lift, the space under the bed slats can be used to store large items. Detailed information: To reduce the risk of damage, this bed frame is shipped in 3 cartons, and these may arrive on different dates. If both packages have arrived but some parts are missing, please contact customer service. If you are moving the bed, please lift it instead of dragging it across the floor. Before returning the product, please first contact the seller. Thank you for your understanding.