They have been advertising Seresto pretty heavily in the US lately. There is a commercial with a dog running around saying Seresto over and over. It is kind of cute. We have been using Sentinel since she was a puppy for our dog Jovi. She is pretty wild so she is never off a lead with us, but we do quite a lot of camping in the Summer and she has yet to have an issue with fleas or ticks. Like your dog she pretty much gets the run of the house while we are at work and whether at home or camping she sleeps on the bed with us. At 70 lbs, she is quite the bed hog!