NO SLEEPLESS IN MAC LAND

I finally have a modern computer monitor that can directly connect to my not-so-modern, but not that old, Mac laptop.  Typically with laptops using external monitor, I prefer to keep the lid closed.  I have this fear that a laptop is very vulnerable when it's wide open.  A push of the screen in the wrong direction can snap something and it won't function the same way any more.  When not in use, I usually keep the lid either closed all the way or at least leaning toward the closed position.  Alas, the way Mac OS X works, as soon as you closed the lid, the computer goes to sleep.  There's no built-in function like Windows where you can tell the operating system to Do Nothing.  There are utilities to disable sleeping but they don't work with laptop lids closing.  What a bummer!  Ya know, back in the day, the Mac was a superior graphical interface but in some areas Windows now has overtaken it.  Like this Sleeping issue, for instance.  My so-called workaround is to keep the Mirroring function, so that the laptop screen and the external monitor show the same thing, then close the laptop lid but jam it with my Bluetooth keyboard.  The laptop lid is in a slanted position so I don't gain any additional real estate space on my physical desktop, but at least I can see the big screen with the laptop screen sorta out of the way.