The Jaelyn series builds on the style and feel of the Harlow Series, Offering a Heavy Duty 789 Count Individually Wrapped Coil Spring System with Quantum Edge Support. Also adding 2" of Five Zone Convoluted Serene™ Foam. The Serene™ layer will help promote air flow while providing a depth of comfort unique to this series. The Jaelyn series is available in three choice of comfort (Plush, Firm and Pillowtop) and will work on any adjustable base.