Get a great night's sleep without spending a fortune with the Pearl Beach Euro Top Plush mattress from Serta's Sleep Retreat. The 520 (Queen) Mira-Coil® Innerspring arrangement provides a nice support system. A layer of Gentle Support™ Foam gives you more support and added comfort. Additionally, a layer of Gel Active® Gel Foam and the Gentle Support™ Aire provide more comfort and support. This mattress is ideal for back and side sleepers.