Helps allergies too None Instead of using a clean towel, I change my pillow case every night. I started doing this because of allergies, but it helps with acne too. Every day skin cells, bacteria, allergens, etc are building up on your pillow. Just change the pillow case or towel or a big t-shirt on it and it makes a huge difference! Instead of waking up all puffy eyed and exhausted, my eyes are clear and I feel much better. When we get a new bed set, we just save the old mismatched pillow cases and I throw them in the washer and dryer during laundry. I even usually go a step further and have cheap fleece blankets that I use for near my face. It doesn't matter what's from my waist down (I keep a heavier comforter on my torso and legs), but I keep a fresh blanket near my face so I'm not rubbing it in a dirty blanket.