1. Don’t limit your mattress search to innerspring mattresses.
2. Explore what will best suit your needs.
3. Don’t be sidetracked by trends or gimmicks.
4. Know the difference between firmness and support.
5. Don’t buy more than you need.
6. Know what the exchange policy is.
7. Take into account the importance of a good night’s sleep.
8. Don’t be too attached to brand names.
9. Take into consideration the longevity of the mattress.
10. Be sure to know the features and benefits.

These list is as suggested by Ben Hermsen who is the manager of FoamSource. The reasons are expounded on Yop 2. Visit that for additional information.