Why mattresses have different names from store to store

Are you confused and irritated with so many mattress names? One of the most annoying practices in mattress industry is to have the same mattress on the market under several different model names. Here is a scenario: You are excited to buy a new bed and you have a plan – visit 2 stores and go online. After spending all Saturday morning laying on beds and surfing on the internet you are more confused than before. You found a model that you like from Brand X in one store for $1500, down the street, in another store they had a different model from Brand X for $2000 and yet online you found another model from Brand X for $1000. As much as you tried you couldn’t find a significant difference among those three. You even tried to search for these names online and came up with nothing. So how could that be?