Lull mattress has 1.5" gel-infused, visco elastic memory foam. The same exact foam combination is only $449. at Mattress Showcase.Bargains. The myth of Savings when you buy online is not real. They have to cover different expenses. The Price that they say a retail store will charge for the same mattress is crazy the most I have ever seen a bed fitting this description is $699. not even close to the price they listed. The fact it is the retail store is less expensive. We help you select the right mattress for you.