I lazer temp his cage ever once in a while and it averages around 75° he is up by the celling to gain all the heat that sits up there. Extremes are 72° to 80°
Every once in awhile? There should
be a thermometer at the cage at all times, so you always know what the temperature is. If your cage "averages" around 75, then it's possible that 72 would be enough to trigger a hibernation attempt.
Also, especially now that it's summer, you also have to watch out for estivation attempts, since you say that the temp can go all the way up to 80 as well.
You need to try to regulate the temperature better, and definitely need a thermometer so quickly see what the temp is at all times. For as FiaSpice said, sometimes, just a mere 5 degrees is enough. It might not seem like much to us humans, but it's enough for them.
You should take him out of the cage and feel his tummy. Also, put him down and see if he'll walk and how he is walking. If he is wobbly, or feels cold, you need to warm him up quick. Body heat is the quickest and safest way. Wrap him up in fleece and keep him close to you.
Now, nesting behavior....
They DO like to burrow, so it's possible that he just burrowed and curled the fleece around himself. Mine burrows a lot in his fleece blankets, even when he's laying in my lap. Only difference then is that he's splat out on my lap more :lol: