Electric blankets can definitely keep you warm during those cold winter months. If you have back problems, electric blankets can also help relieve pain for some people. For one, I know my mom used to use electric blankets all the time.
You must remember though, these electric blankets can eventually get worn out and cause fires. They are one of the leading causes of house fires.
According to the Become Shopping Blog:
Even if your blanket it is less than 10 years old, you should still keep an eye out for obvious signs like scorch marks and fraying on the power cord. If you think there might be something wrong with your blanket, it is better to be safe than sorry. It is also worth getting it checked out by an expert every 2-3 years and many local councils offer an annual electric blanket inspection service free of charge.
I have to agree that if you use your electric blanket on a daily basis, make sure you swap them out for new ones at least every 10 years. Besides protecting yourself from unwanted fires, electric blankets get better and safer every year. It is a small investment/insurance for your home.
New models of electric blankets are safer than ever and also offer new features that regulate the temperature to keep you even more comfortable. You should make sure that the electric blanket you buy has an automatic shutoff device.