Hi all. for the last 3 days whenever i put my mac pro to sleep i come back severals hours later with the mac pro completely off. re-start the nMP by pressing the power button with a "sleep wake failure experienced a problem" tried contact applecare via chat and they recommended doing PRAM and SMC reset. done that and the problem still exists. also ran Diagnostic and no issue. nMP6.1 6 core D700s 32GB running OSX 10.9.5 don't recall updating any software 3 days ago or have anything new installed on the machine. Thanks in advance.