HomeAll ProductsFoundation 9" or 5"A foundation gives your mattress the support it needs. It is available in 9" high profile (HP) or 5" low profile (LP).See it at our showroom at 907 N Main St in Ann Arbor, or call 734-665-8900 with questions.Foundation 9" or 5"$159.00PriceSize*SelectQuantity*Add to Cart