Capitol wrote

Tried to buy a new single electric blanket for granddaughter. Total
failure. It seems that all the current products have a life of 2 years

Mine must be at least 10 years old now.

and have been afflicted with auto shut off after 10 hours

Mine is 12. Does catch me occasionally when I forget to cycle
it, I use it for the nap I have every day as well as at night.

and are low temperature only.

Thats bull****.

The customer ratings are 2* out of 5

Not with mine, a sunbeam.

and the customer service seems to be non existent.

Not with mine. I did see some reports of control failure
but they got those replaced when they did fail.

I bought a couple of US superking electric blankets a few years back and
these were total crap in terms of heat output and have been scrapped. I
went back to the old monagram blanket and added a panel in the middle to
make it fit the bed. Maybe Dyson can build a product that works. I won't
hold my breath!