Fill your washing machine up all the way with two pillows inside. Push the pillows around so they’re fully soaked. Add one cup of hydrogen peroxide, a half cup of vinegar, and a quarter cup of lemon juice to the water. Then, let the pillows soak for 30 minutes. Flip, and let the pillows soak for another 30 minutes. After they’re done soaking, add your laundry detergent and run your pillows through a normal wash cycle. Follow instructions on the care tag to dry your pillows.