For fixing sleep look for an option in Lenovo's BIOS. I had it set to windows sleep mode by default. Switched it to Linux mode and it has been working reliably on my x13 AMD.
I upgraded from thinkpad x240 on which sleep worked perfectly too.
I upgraded from thinkpad x240 on which sleep worked perfectly too.
Linux, however, is another story. Bad sleep support, forget about printing, scanning, GPGPU computing, etc. We use it when we have to.