Like many others in the community, I am running a Samsung NVMe drive in my Late 2013 15 inch Macbook Pro. [Thanks to the firmware update provided in 10.13 Macs back until around 2013 can work off of a NVMe drive natively] (Credit to Gilles) 1.
I used a Chenyang NGFF to Apple 12+16 adapter and formatted the disk in Disk Utility in the installer to APFS, then installed the system (10.13, initial release). Note that before wiping and reinstalling the OS, I had previously upgraded to High Sierra.
Speed wise I am getting about 1400MB/s read and write speeds. I am stating all of this to show that the drive itself works great, except for deep sleep mode feature. It cannot come out of deep sleep mode, it just shows a black screen. Anyone happen to know of a fix? I have read that it could be due to the drive not powering on in time for the SMC to find it. If no fix is likely, what workarounds are there?