Similar to this existing "know problem" described here the problem does stil exist:
you cannot wake the NUC from any sleep (S3, S5, ...) with a keyboard / mouse paired via bluetooth.
My Mac mini does wake from sleep when pressing a key on the bluetooth keyboard.
By the way: using a bluetooth dongle instead of the onboard one is not a option.
Any help appreciated.
Sorry to disappoint you. Wake from Bluetooth is not supported in your NUC. See Technical product Specification, page 37, Table 12: https://www.intel.com/content/dam/support/us/en/documents/boardsandkits/NUC7i3BN_TechProdSpec.pdf