Avon Bath Powder for Refreshing Your Mattress30 years ago, I started sprinkling Avon bath powder on my rugs to keep them fresh. After a few minutes, I vacuumed it up. I use it on top of my mattress cover rubbing in the powder before putting on the sheets. There is now a spray for on your covers, couch, etc. However, it left a wet film. The powder doesn't.