Are you replacing your old mattress or do you need and additional mattress?
Which size mattress are you looking for?
Do you sleep on your side, back or stomach?
Do you share the bed with a significant other?
Do you have a preference on how firm you would like your mattress?
Do you have a preference for the type of mattress you would like?
How important is a trial period?
What is your budget for your mattress?