Your new Sealy Posturepedic divan bed is provided with a 10-year warranty against manufacturing faults. It is advised that you change your mattress every 8 to 10 years, as this is typically their lifespan. You can, however, ensure that you get the longest possible life out of your mattress by choosing the right one to support your body type and sleep/comfort preferences. Don't trust unknown brands or place all of your trust in "bargains", as you could end up having to replace it far sooner, therefore paying more for your bed in the long run. Read our guide to How Long a Mattress Should Last for more information.