The kind that saves you money. ;) Joking aside, a quality mattress can last for decades (and will often have a manufacturer's guarantee of such). The price of

The kind that saves you money. ;) Joking aside, a quality mattress can last for decades (and will often have a manufacturer's guarantee of such). The price of the mattress is surprisingly non-correlated with the annual cost of ownership: http://www.us-mattress.com/durability.html http://www.us-mattress.com/durability.html