These great value mattresses, from Serta, give you deluxe features with out the high price tag. Wrapped Coils allow each coil to work independent of each other so they fill your curves for outstanding support. These coils are encased with high density foam, providing a firm edge and full mattress surface use. Layers of soft, cooling foam provide the comfort for a good nights sleep. This Plush model is good for a back or side sleeper.