Bargaining works. I just paid $525 for a $628 mattress.

Almost all sales are negotiable in some way. The more expensive the purchase, the more leeway there is for negotiating. I paid cash, and $557 was all I had in my wallet. I was going to go visit the other mattress store next door if I had to leave to get more cash, and I told them that. $557 is what I paid after taxes.