Computer Won't Sleep

My computer lately has decided that it does not want to enter sleep mode anymore. A lot of the time when I am done I will just close down the more resource intensive programs and hit sleep mode, then walk off. But lately when I come back, after the screen has already gone black, it'll end up back at the login screen.

I've poked around a little bit to try and find a cause and haven't been able to come up with much. Around the same time this started, I began playing World of Warcraft again, but I'm uncertain the correlation that could have.

Additionally I've used the cmd.exe powercfg -requests command, which comes up as such.

Display: None.

System:
[Driver] \filesystem\srvnet
An active remote client has recently sent requests to this machine.
[Process] \Device\HarddickVolume4\Windows\SysWOW65\svchost.exe

Awaymode:
[Process] \Device\HarddickVolume4\Windows\SysWOW65\svchost.exe

That whole 'active remote client' thing seems a little suspicious, but that might have something to do with the MMO.

My computer has also been occasionally a little sluggish lately, but that might just be due to natural wear and tear.

Any assistance and/or knowledge would be greatly appreciated!