At this point in time, should my ball still be exploring around the tank at night? In other words, he'll run his head up and down the seams of the tank and poke his head at the top of the screen from time to time throughout the night while he's out. Is this normal? Does anyone's balls do this? Thanks guys

My temps and humidity are as follows:

warmside-92.3
coolside-81.1
ambient- 85.7
humidity- 57%