We all change our bed sheets regularly and even wash the mattress covers too, but what about the mattress itself? After a time, it can develop odors. Well, since we can’t wash it, here’s the next best thing: put 1/4 cup of baking soda and 6 drops of lavender essential oil in a sieve. Sprinkle this over your mattress. Let it sit for a half an hour then vacuum up. The baking soda will have neutralized odors while the lavender oil added a relaxing scent to help you sleep.