I am so very, very thankful for this product...it has saved me from losing sleep on more than one occasion. I have purchased 3 of these mats, including 1 for a neighbor that decided to throw her 15 year old cat out in the elements because she was pregnant ( but I digress ). I truly believe these pads, along with the shelters I made to put them in, have saved 4 lives in the last 2 years. Thank you K&H for making such a smart and stellar product.