Not OP, but I fixed sleep and restore on an HP Elitebook yesterday by installing the Nvidia display driver, the nouveau driver seemed to be what was stopping it from waking. That has been my experience with every PC with a dedicated GPU.
For what it's worth, the Razer Blade Stealth does not have a dedicated GPU, just a regular integrated Intel HD 620 like many other Kaby Lake ultrabooks.
The Razer Blade (regular, non-Stealth) is the model with the dedicated GPU.
I've been seriously considering picking up the fully loaded model with the desktop 1080 GPU, but I'll want to dual-boot windows 10 and some variant of debian for gaming and to experiment with machine learning, respectively. I'm afraid I'll end up spending several weeks trying to get everything set up correctly and then hit some dead end after it's too late to return it. It's the same price as the new MBP but the specs are crazy[1].