Use the various research resources, such as mattress comparison sites on the Internet, to determine what the best manufacturer and model would be to suit your needs. Compare things such as average life of the mattress, the different colors and styles available and the way the mattress is made. Through research it may be determined that a foam mattress is a better fit for your situation than a spring mattress. Use this information to narrow down the choices.
Create a chart that compares everything from pricing to local availability and in this way, be completely prepared when choosing a new mattress. Take the chart with you for easy reference. It is easy to become overwhelmed by pressure sales techniques at stores, but being armed with all of the information needed for comparison shopping will help you avoid making a costly mistake.
Try out each mattress while lying in many different sleeping positions. Make written notes as to which mattress is the most comfortable. Try different sizes as well, because a queen-sized mattress may be more comfortable than a king-sized one.
Discuss warranties, delivery options and installation with the different retailers. After evaluating all of the information collected, make the final decision based on the appropriate mattress for the best deal.
Ask about products that can extend the life of a mattress, such as any special coatings that can be added to help protect the mattress from mold due to spills. Also ask about how often to flip the mattress to extend its life.