Base: Plus, it has a sprung slatted base for added comfort. Bed frame: Get a black Madrid ottoman storage bed frame. Mattress: Upgrade to add a 20cm pocket mattress, or a 15cm or 20cm memory mattress. Design: Stylish curved design with an LED light in the headboard which features multiple colours and modes. Storage: Gas lift ottoman offers plenty of storage for your bed linen, towels and more. Two sizes: Valid in double or king size.