When buying a memory foam mattress, be sure to check for a CertiPUR-US certification, which means that it’s low in volatile organic compounds (VOCs...

Off-gassing is the unpleasant smell memory foam mattresses tend to have when first unboxed, which comes from VOCs as they’re released into the air....

Memory foam mattresses are prone to sagging, and if your memory foam mattress sags or is leaving lasting body impressions, it’s time to replace it....