How to Use the Relax Sauna Sit Up Version in a Lie Down Configuration

Relax Saunas also offers a lie down version of the sauna but you can also use the sit-up version on its back to use it lying down.
Lie down version https://www.relaxsaunas.com/store/p3/liedownsauna.html
Sit up version https://www.relaxsaunas.com/store/p2/relax-far-infrared-sauna.html