The Beautyrest Reliant Medium Pillow Top is perfect for side and back sleepers, and for anyone who wants a soft pillow top with a firm support system, at a great price. This mattress has the Beautyrest 800 Pocketed Coil Unit, which conforms to the curves in your body and keeps motion from transferring across the mattress. The Reliant Medium Pillow Top also has a Gel Memory Foam Lumbar Support, which provides extra lower back support and also increases durability. This mattress has a 10 year warranty, and is approved for use on adjustable bases. The Beautyrest Reliant Medium Pillow Top is a firmer pillow top, at a great value.