MAC MINI as Music Server?

So I just started using a Mac Mini as my music server. Using Mac Mini(running ITunes and Pure Music)> optical to Rega DAC > Rega DAC to Rega Elicit. The sound is awesome. I'm using the remote app on my iphone for control. Only problem is that when you put the Mac to 'sleep' you have to re-sync the phone to iTunes when you take it out of sleep mode.

I guess my question is, would it be bad to disable 'sleep' mode on the Mac Mini? Will this greatly shorten the Mac's life?

Thanks for your advise if you have a similar setup and issue..