I am having a issues with sleep mode    I set my pc to turn the display off after 10 min and to put the pc to sleep after 20 min   I have a usb mouse and keyboard    just for now   I will be going to a wireless mouse and keyboard soon    but here is the problem    when I go to wake it up by striking a key on the keyboard or by moving the mouse    all the fans come on and the cpu fan but I get no display  the only way i can get the pc to turn back on completely is to turn the power button on the power supply off then on and it boots up completely then   I have messed with S3 mode in bios but have had no luck     I would like to use sleep mode if possible    do any of you have a fix for this issue 
 
 

no I can though     let me do that and give it a try     thank you 

okay I see what I did    it is disabled and sleep option is back    let me let it sit and see what happens      thank you 

sorry   
 
motherboad is a EVGA z370 ftw 
os is win home 64 bit 
cpu is Intel Core i5-8600K Coffee Lake 6-Core 3.6 GHz 
memory G.SKILL Ripjaws V Series 16GB 
graphic card it pny gtx 460      
 
when I press the power button or reset button   it goes off then on but no display     this is after it goes to sleep    if pc is awake and I press the buttons it is normal function    the pc goes off for the power button and if I hit reset it resets    strange    

glad its fixed