4. Clean with Baking Soda
Is your mattress covered in stains from old spills and pet accidents that went through the sheets? First, you want to take a sponge and begin cleaning the stains with detergent. After you’re finished, don’t wipe dry. Sprinkle baking soda all over the stains instead. Leave the mattress alone for 24 hours (forget sleeping on it) and then vacuum off all the baking soda. You’ll be happy at how much cleaner your mattress is now.