Without a good night’s sleep, your life can become a nightmare This memory foam mattress is engineered to reduce pressure points on your hips and your shoulders, giving you the best opportunity to rest well. The 60 Density Memory Foam offers your body the ideal firmness for the ultimate in support. This mattress will arrive with a soft knit cover. Upon arrival, allow 48 hours to pass by before using to allow the mattress to expand to its full volume.