I bought cheaper heat mats last year (£15 or so) but the quality was awful and I was worried to leave them on unattended as it would get a funny smell and burn certain surfaces, to the bin they went!. I used to work at a vets where they used mats similar to this pet remedy one so I felt assured with this purchase. (Also I love pet remedy products) Right so I was as it is completely safe to be left on constantly, no funny smells, keeps kitties at a safe temperature and no concerns of burning. Also it comes with pet remedy wipes and spray. Well worth the price!