Help diagnosing constant CPU usage of phone during sleep (Battery Historian Chart)
These two wake locks are related to the OS
and android doesn't give any control over the system wake lock without root
Some times the OS gets buggy and it will not release the wake lock.
your best bet is to reboot the phone and wait about 5 hours to see if the battery drainage is the same after the reboot. if that did not fix it then it is an OS bug that only Samsung can fix. not that I think that they will