"DS Living’s Harmony Spring Mattress is designed for straightforward, dependable comfort, combining a supportive open coil core with a considered quilted finish. The Harmony 13.5 Bonnell Spring Mattress with Comfort Layers offers even support across the sleeping surface, making it well suited to everyday use in the bedroom. At its centre is a durable 13.5g open coil Bonnell spring system, created to deliver consistent support with a slightly firmer feel through the night. A quilted panel top in 100% polyester adds a softer touch while maintaining structure, and recycled polyester comfort layers provide breathable insulation as part of a more sustainable sleep solution. Finished with a medium firmness, it’s a versatile option for a wide range of sleepers and arrives rolled and boxed to help with access through tighter hallways and staircases. Key features 13.5g open coil Bonnell spring system for even support Medium firmness Quilted panel top Top material: 100% polyester Recycled polyester comfort layers Rolled and boxed for easier access Maximum user weight: 120kg Please note: Colours shown are as accurate as possible, though may vary slightly depending on your screen settings."