Impeccable quality, comfort and luxury – the 12 1/2″ Plymouth Hybrid Innerspring Mattress from Thomasville lets you experience unmatched relaxation. Thomasville takes the classic support and feel of a traditional innerspring mattress and pairs it with an exceptional array of cooling, contouring, comfort layers that simply cannot be matched. 8″ of premium fabric wrapped individual steel coils gently flex and yield to your body for cushioning support.