Too cold?

[Ezekiel285]

I don't keep anything 90 degrees except the hot spot.

78-80 cool end
86-87 warm end
92-93 hot spot

Well thats what im saying, my hot spot is only 86. But he never uses it and is always in the hide. So i really dont know what to do. I guess he's fine? i feel like he would come out if he got cold. He is also only about 70 grams, and i've heard that smaller snakes actually like it a bit cooler, i don't know how true this is though.