The hubs and I slept in our warm, comfy waterbed for thirty years. Then last spring we had to move to this upper floor apartment and were not allowed to bring the waterbed. Fortunately we had a super-comfy king mattress in our spare bedroom, which allowed the change to be merely sad and annoying instead of catastrophic… except for the temperature. It’s like that mattress has a refrigeration unit inside! I had a heated foot-area mattress pad (Sunbeam Toasty Toes) that I left on there even through this summer but with colder temps fast approaching I knew that wasn’t going to cut it. So I crossed my fingers & bought this, put it on the bed last week and we are WARM WARM WARM!! The dual controls are fantastic, the heat levels are distinct, the wiring is not noticeable when you’re laying on it. Love the auto-off, which the foot-warming thing didn’t have. It’s not exactly cheap but if this quality doesn’t diminish anytime soon it’s absolutely worth it. ?Even I have to admit I sometimes buys unnecessary things from Amazon. At first my husband thought this would be one of them. That was until he slipped into bed one night to find it nice a toasty. When I get home I use the seating so that when we both go to bed each side is warm even if he likes turning down the heat to 65. I love this and I’m thinking of buying it for the rest of the rooms in the house.We live in New England so our winter can be very cold. The best benefit of this is to turn it on 2-3 hours before you plan on going to bed so when you do climb in the sheets are warmed up for you. I would liken it to pulling sheets right out of the dryer, they get that warm. A word of caution though, do not fall asleep with it left on the fever dreams will be murder.This heated mattress cover is wonderful! My husband and I both love it. Although, he keeps his side a lot lower than mine, it works so well and keeps us both warm all night long. We are so pleased with this purchase.We have bought three Sunbeams in three years. They work fine for about one winter then one side or other stops working. We are hoping this one will be better.This queen size pad fit my queen temperpedic mattress perfectly. It is comfortable and warms very quickly. Very good product for price!❤️Very soft placed it underneath the mattress cover warms up very well on low setting goes up to eight settings separate area that way one side does not get too hot easy to see without glasses onThis has made going to bed even that much better. Wife has asked if I plan on leaving her for this product. Ensure to turn it on a couple minutes prior to laying in bed.