Every once in a while you can freshen up your mattress from any odors by combining 1 cup of baking soda with10 drops of lavender oil. Sprinkle over the top of the mattress. Let this solution sit for about 2 hours with an open window in the room. Then vacuum up any leftover mix. The baking soda will have lifted odors while the fresh air dried the mattress so new smells won’t settle in. A bonus: the lavender oil infuses your bed with a sleep-inducing aroma.