King Koil Beckett Foundation
For the King Koil Beckett Extended Life mattresses. Available in 5 or 9 inches. For a king order 2 of the Twin XL sizes. King Koil supplies its Superior Extended Life Foundation is a sturdier version of regular wood-framed bases, with 2½ times as many slats and 3 times the beams. The heavier foundation protects the mattress from breaking down. Covered with fabric, it matches or complements the mattress.