Then when he's done with you, I'll come in.
My own experience is that if you get your nutrition 90% or more right, sleep is something you can fudge a fair bit. If you can get one decent seven to eight hour sleep every five to seven days, the other days you can function well enough on maybe four or five hours sleep. Less than four hours and you're pushing it though.
Not too sure how well that applies to aesthetics training though, I'm guessing maybe less so because the goal is primarily adding size. Still, you should be OK if you're eating mostly well but your sleep is maybe around 60-70% of what is theoretically required.