The Nectar mattress is an all-foam bed that is consisted of 4 layers and totals 11 ″ thick. It begins with a thick base layer of assistance foam. As the name suggests, this layer works as the foundation for the bed. Next is a layer of what the company calls its “Adaptive Hi Core Memory Foam.”Don’t let the elegant name fool you, though– it’s generally simply a thick layer of memory foam that practically serves as a shift layer from the assistance foam below.