If you’re sneezing at night or plagued by itchy eyes and a stuffy nose, your problem may be your mattress. A good mattress should last ten to fifteen years before it needs to be replaced. Memory foam mattresses may last as long as twenty years. After this amount of time, it has accumulated bacteria and allergens that may be harmful to your health and comfort. If your old mattress is nearing the end of its life, you may consider replacing it with a memory foam mattress. Memory foam mattresses are a good alternative to conventional mattresses and those filled with feathers for those who may have allergies. To further prevent allergies, consider covering your memory foam mattress with a plastic cover. By preventing allergens from seeping into the memory foam mattress, people with Multiple Chemical Sensitivity (MSC) (those who suffer most) can sleep sneeze-free. Memory foam mattresses, as well as latex mattresses, tend to be allergy-free and hypoallergenic.