I've been using Electrowarmth products for 20+ years. Great way not to ache in the morning from stiff joints and better than cranking the heat up in the winter. In the spring and fall it takes the humidity out of the bed and makes for a comfortable night's sleep. LOVE them. Customer service is awesome because this is a little family-owned business who are proud of their products.
I bought 2 twin xl mattress pads for our split king bed. Not an easy or inexpensive item to find, but I have had good luck with many Overstock purchases in the past....and I was desparate. The bed was being delivered and I didn't have time to do alot of shopping, so I took a chance. The good news is that it works well enough to warm the bed up before I get in it. The bad news is that it shuts off after a couple hours. Not at all dependable and definately too expensive for the quality of the item. Looks cheaply made as well.