I read through the links regarding tips on negotiating the best price for a mattress snd I have a question. Is it better to ask/state about a discount before or after the salesperson gives me a price. For example, when I ask him for the best price should I tell him that I don't need a boxspring or ask him about discounts (being a student, return customer, coupon, etc) after or before the quote? Also, in regards to price, I have a sleep train 15% off coupon from sleep train. Would they object in any way after they quote me their best price to use the coupon? So far I have only dealt with sleep train dealers but i still intend to look elsewhere as well. Any feedback would be appreciated. Thanks.