The ComfortCare® Dublin Ultra Euro Top Mattress by Restonic, provides a wonderfully soft yet supportive sleep surface. A great value, with many premium components without the premium price. Using a 1,000 series individually wrapped coil unit, you'll feel the support across the entire mattress. A layer of 1386 (Queen) Micro Coils adds additional support. Layers of Super Soft Foam including Gel Memory Foam and AirFlow Fiber provide pressure relief and a cooler sleep surface. This is a very good mattress for a back or side sleeper.