The coated red and green are what you recommended in your earlier post, and what I purchased. I can't compare them to the uncoated, but they are working great for me. I have had four good night's sleep in a row. I wear one all night, and again during the mid-day nap. Not only am I sleeping better, but have very little pain during the day.
Sleeping good and not living with daily pain, makes me less cranky. So, I thank you, but my husband thanks you even more.