What is needed for proper sleep?

When I first installed macOS last time I used MultiBeast and managed to get a system that slept properly.

I just reinstalled macOS due to my first install bricking after a certain point and this time I used the vanilla guide. While I got macOS installed, now if I try to sleep the system it's a guaranteed crash.

Where should I start to troubleshoot this? Admittedly I didn't know how to help myself last time because I let MultiBeast do all the work for me.