Flexwatt burning on half

[Eric Alan]

I did however notice a pink line on his belly.

From the looks of his size and the location of the line, what you're seeing is probably his belly button.

I decided to check the hotspot with temp gun and one side where he was resting read 90 but the side with bedding on it still, read at 95. Is this hot enough to burn? The thermostat is set at 94. He never goes on that 95 side.

Be careful: "He never..." have been famous last words a few times. If it were me, I'd turn your thermostat down to around 90. They really don't need much hotter than that for proper thermoregulation and it gives you a bit of cushion before you start approaching that 95ish F danger zone.