Saso Pure 1500 Pocket Mattress. A very very luxury comfortable mattress. Luxurious stretch fabric cover enhances surface comfort High-grade upholstery includes a lavish layer of wool, silk, cashmere and cotton Advanced pocket spring system with individually encased pocket springs provides proper underlying support Fully encapsulated with Saso AdvantEdge™ to provide a wider sleep surface with total comfort and support Designed as a no-turn mattress – please regularly rotate 180° to extend mattress life and performance