The 5500 Plush Mattress is a value priced mattress with lasting comfort. The comfort and support foams are pre-crushed, which helps eliminate softening and sagging, to keep the original mattress feel. The alternating offset coils aids the comfort and support. These coils are encased with high density foam giving you a firmer edge and less roll off. A good mattress for your spare bedroom, a youth bedroom or starter mattress.