Ackie nap time?

Hello, just recently acquired a 4 months old ackie.been in his new 40G enclosure for a week now. Hot spot at 150'f with air temp at 82'f.
He does sleep a long amount of time. He doesnt wake up till 12pm and goes to nap quite often on top of the foam background. Then he goes back to sleep at 6pm. He has been eating daily and I m trying to get him use to my presents. Is that the right amount of sleep time for a baby ackie?

My ackies, young and old, spend much of their time sleeping. They have large, flat, heavy rocks under their heat lamps, resting on a thick layer of bark and coco fiber substrate which is kept moist with daily spraying. The lizards like to dig and scrunch themselves up under the rocks, which are quite hot during the daytime hours. They don't come out much except to hunt. For this reason, I don't have UV lights on them, but I take them individually outside for a sunbath several times a week. They just rest on my leg or shirt and enjoy the sun while I read.