Giselle Bedding 30cm Mattress Medium Firm KingWhen your sleep requires a super firm support mattress for any number of reasons, you can rely on the Giselle Bedding Mykonos Series Euro Top Firm Mattress to address your needs. The mattress is designed to offer firm support with its six working turns per coil system, a fact that is critical in determining the right amount of support needed. The independent pocketed spring design also ensures that your body weight is evenly absorbed and distributed