Memory mattress: Get a 3000 pocket sprung and memory foam mattress. Pocket sprung: Provides even weight distribution with no roll-together. Memory foam: With a high-density memory foam layer for enhanced comfort. Firmness: Medium firm - ideal for those who like to sleep on their back. Cover: 9 - 10" approx. in thickness, and tufted in a quality cover with wired edge. Size: Choose from 6 UK mattress sizes - see full details for list. Pocket Sprung & Memory Foam Mattress | Small | Living Social