If it's anything like my Egyptian bowl it's shallow, but wide. Does the website selling it specify dimensions for it? I usually pack about 10g-15g of shisha per bowl which is perfect if I'm smoking alone (which is most of the time) for about an hour to an hour and a half per session. I have burned AF and Hookah Freak before, but my limited experience with Nakhla has proven it's very tolerant of heat which is one of the reasons it has quickly earned the top spot in my brand selection.
Mende, I'm going to be reviewing some Naklha tonight for a video. I'll snap a few pictures of how I pack my bowl and post them here so you can see how I do it. I smoked the same bowl of Fakhfakhina Fruits the other night for almost two hours and it never burned, so hopefully the way I do it would work for you as well.