Foam-encasement means that the perimeter of your mattress is reinforced with a high-density foam. The coils are, essentially, dropped into a foam "box" which gives stability/durablity to your mattress. The coil systems in foam-encased beds are termned insert coil systems as they are inserted within this protective outer layer of foam enacasement, Foam encasement functions to:

• Increase the usable sleep surface of your mattress by as much as 20%.
• Allows you to sit on the edge of your mattress more comfortably and increases the mattresses life-span.
• Simply makes the mattress more durable, generally.

Foam-encasement is a feature of many of our premium mattresses.