Is your pillowcase soaking up your nighttime skincare products? If you notice stains on your pillow in the morning, there’s a good chance it’s absorbing traces of products from your skincare routine while you sleep. Try these tips to ensure your skincare products don’t end up on your pillowcase. (1) Sleep on your back. (2) Give your skincare products enough time to soak into your skin before laying down for bed. (3) Choose a lightweight moisturizer that can provide hydration without leaving behind a greasy residue.