Rebel and Tequila wait every day for the sun to start coming into the house. Sometimes rebel doesn't wait and goes outside to lay on the concrete in direct sun until he gets too hot. There's a science to it from what I can tell especially when he's not feeling good.
I do something similar. I'll go cover my eyes and pass out on the roof midday until I get too hot then I'll pass out in the hammock for a bit. This was one of those days.