have the cushion to warm to 450W 2min in the Micro (after 1min turned) it was at the beginning not very hot but this has changed after some time I found it very enjoyable and I am surprised that so long held it the heat has. The scent to the pillow is flowing pure nature and I feel him as not disturbing. Unfortunately, only 4 out of 5 stars because the pillows in the pillow case back and forth and it slips a little difficult it is to bring shell into the desired position. I would buy again !!!!