I have never had a Sunbeam Electric Blanket outlast it's warranty. In fact I believe the warranty went from lifetime to 5 years and then down to 3 years. It may only be 1 year now. The queen blanket I have was a warranty replacement and I got no new warranty paperwork from the retail store, that is now out of business. After a year, one of the dual control buttons was difficult and finally impossible to turn on. As a single person, I just started using the good side. This winter season the other control button started acting up and it's just a matter of time before I will need another replacement. I was disappointed from the first use in that it never got very warm but it was better than a cold bed to slip into. I am sure the problem is a defect in the dual controls and not the blanket, which to me is useless without heat in Minnesota. It's been very frustrating to have this brand name fail to perform time after time, as it is a rather expensive item.