Not too cold, its keep inside of a house, and travels with me to work on the bus (no car atm!).
The house is warm enough for me, so I'd assume the same for the empeg.

The "office" is really cold in the morning, but it doesnt hang around getting cold, I need music straight away!

Its not a big problem for me, but if it does it in the car as well (that will have to wait till I buy another one) then I guess its something to look at more seriously.