I own a mattress store in San Diego. We have a showroom, as well as an e-commerce website where we ship mattresses all over the country. In my experience, it is better to buy from a local store,  for price, service and the ability to try beds and get advice on the differences between mattress types and brands. People think the price is better online, but that is not at all true. Mattresses range in price from $99 to $10,000, and up. Value can be gotten online or in a store.