I have a laptop that when sleeping is perfectly quiet, which is great.  What isn't so great is trying to sleep with led lights that get brighter and brighter, then dim, then get brighter... all to let me know the computer is sleeping.

Well I also want to get some sleep.  

How do I make my computer play dead (Dark and silent)?  Eg: appear hibernated, (no lights, no moving HDD...) without hibernating, or shutting down my PC.

It would be even better if I could have the status lights work normally between the hours of 8 AM to 8 PM but I don't expect such an elaborate solution.

I do however want the answer to only affect the computer's software, not the hardware.  No [cutting cables or masking tape](http://superuser.com/questions/101995/how-to-turn-off-the-acer-aspire-7738-power-button-led-light)...