If it's the same problem as this:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1743094
comment no.19 sez a kernel downgrade fixes the issue.
Quote:
tested hibenate-resume cycles with a couple of other 4.13 kernels:
4.13.0.16 - works
4.13.0.21 - works
4.13.0.25 - broken
4.13.0.30 - broken (from Canonical Kernel Team PPA)
EDITED: 2 Apr 2018 14:03 by DSMITHHFX