MBP goes to sleep when watching Youtube videos

[techmonkey]

Whenver I watch a video online, my MBP goes to sleep. Is there a settings that will stop this from happening when video is playing? Seems like a no brainer. When I watch videos with Quicktime or VLC, this doesnt happen.

I found a program called "Jiggler" that moves your mouse automatically every X minutes, but Id rather not install a program to do something this simple.

 

[iKitten]

Whenever I'm watching video online I go into system preferences and change the sleep option times under energy saver ('course then I have to change it back when I'm done).

 

[techmonkey]

Whenever I'm watching video online I go into system preferences and change the sleep option times under energy saver ('course then I have to change it back when I'm done).

Yea. So far thats the only option I found to do it by default. I installed Jiggler, seems like a simple enough program. I have it set to move the mouse every min.