So I tried my idea of relaxing in front of my InfraRed (fan less) heater and used an Ott Lite as a stand in for a light box. I used a beach chair that is low to the floor and is a seat and reclining back; feet go out in the sand. That way the heat and light sources on the floor were at a reasonable angle. I felt a little like an idiot sitting down until I leaned back and closed my eyes. It's a pretty darn accurate mock up of a warm sunny day. The heat with the light gave me the sensation of sun on my face. the heat alone, which I have tried before, didn't quite do that.