Mattress: Get a bonnell spring memory foam mattress. Comfort: Aims to relax your body by relieving your pressure points and provides you a comfortable sleep. Support: Memory foam gives spinal benefit which provides comfort and stability. Bonnell spring: 13.5 cm bonnell springs offer better resistance, a comfortable sleeping surface, and better ventilation. Sizes: Choose from single, small double, double or king sizes. Hypoallergenic: Made with non-woven and knitted fabric which resists dust and mold. Bonnell Memory Foam Sprung Mattress | Single | Living Social