Sunbeam Heated Electric Mattress Pad Sz. Queen

After doing considerable research, I decided to buy this product last winter. We were very pleased at first; we couldn't feel any wires, and we liked the timer, though we were expecting it to feel warmer than it did.
But after a month of use, my husband's side of the bed started to shut off prematurely, then after another few weeks, he noticed that the connection between the cord and the mattress pad was arc-ing!! There were literally sparks coming off of it!
I really hope this is a very rare defect, because the thought of that thing catching fire right by his head is really scary. I really wanted this product to work, and now I'm nervous about buying any kind of electric warming device for a bed!
I'm still in the process of trying to return it to the company, sorry I don't have any information yet on their customer service.

This electric mattress pad is wonderful. I live in an old two story house and even with the furnace on, the bedrooms stay about 59 degrees. The high setting is really really warm (hot), making it like a full body heating pad. I love it. (And the cats think it's pretty swell, too.) I've had Sunbeam products in the past and have always been satisfied with their performance. When searching for a mattress pad, I specifically looked for Sunbeam and again was not disappointed.

Initially I thought I would purchase an electric blanket. My acupuncturist suggested a heated mattres pad. He uses them on his treatment tables and I believe it helps. I've had my mattress pad for a few days now and its been GREAT. I'm guessing because of Global Warming, Southern California is experiencing an unusually cold, and I mean below 40, winter. Turning on the mattress pad an hour before going to bed ensures a nice toasty bed. The temperature control is great as well.