This Electric mattress cover has denser heating coils which makes it heat more evenly and give users warm using experience in cold weather.   The fabric sides use single-track stretch to fit mattress up to 15" thick making it wrap your mattress 360 degrees. In this way you do not have to worry about a messy bed anymore. In addition it can heat up in seconds to reach your desired temperature. We have carefully designed 10 temperature levels (ranging from 84 - 108°F) on the handy control panel. Apart from that 1-12 hours timing function allows users fall asleep freely. And 8 hours auto-off protection design saves energy and prevents over-heating.   If you are looking for an electric mattress cover please don't miss it!   Super-large electric blanket covers your full body Help you relax each inch of your aching muscles and joints 2 controllers control 2 heating channels respectively 1-12 hours timing function makes users falling asleep freely 8 hours auto-off protection saves energy and prevents over-heating 10 temperature levels (ranging from 84 - 108°f) for users to choose Fit mattress up to 15" thick and wrap your mattress 360 degrees Machine and hand washable design makes it easy to clean Long power cable makes it work flexibly anywhere ETL certification ensures its high quality and long service life