When my system sleeps it doesn't wake up

my system starts fine runs fine however when it goes into sleep and I try to get back on my comp wont start up the computer turns back on but screen says no display mouse has no power same with the keyboard I then have to turn it off it wont start back up if I attempt right away so I wait 20-30 seconds then start it and its fine any thoughts or should I just disable this

Note: happens when computer isn't used for 10-15 min not sure if its sleep hibernate or what mode
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More about when system sleeps doesn wake
  1. Check your Device Manager.
    Are there any bad devices installed?
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Computers Windows 7