So, I've had a great deal of success with VLLSx and DOM_STOP, and recently have been using DOM_WAIT. But it isn't real clear what DOM_SLEEP should provide. Wait will exit from an interrupt, and VLLSx will exit from the LLWU event all as expected. The sleep mode will only exit from a reset. From the documentation, I can see RUN/WAIT/STOP. And from Cpu.c it looks like sleep is like stop but with out any low leakage pieces. What is the use of this sleep mode?
mk20dn512vlq10 with CW 10.4