Can you cite a source for this? I've used several differnt Pi's for various different purposes, and have never ran into this. In fact up until a couple weeks ago I had one plugged in sitting on my desk that I was using to test something periodically, and it would sometimes sit idle for a couple weeks between connections - but never had a problem with it.
I can find a stackoverflow question filled with people pointing out there is no sleep mode[0], but nothing else about it.
Exciting project nonetheless and look forward to using it!
Until I properly found out how to disable wifi power saving, I worked around it by just pinging it from another device every 30 minutes to keep it awake.
These days you're probably better off using something like Screenly: https://www.screenly.io/ose
I have a fork that I hacked some basic auth into here: https://github.com/jpsingleton/screenly-ose
1) Develop your art installation on Raspberry Pi
2) Test it thoroughly so you know it will be robust
3) Install it in the gallery. Works great. Start organising wine for the private view
4) Come back to find Pi has turned off
5) Start debugging up a step ladder or inside a plinth, with an hour before people start arriving
Turns out the standard install goes to sleep if you don't interact with it for 20 mins, something you'd never think of testing for.
Removing this setting, especially for scripts that run as sudo on boot turns out to be tricky, especially with a keyboard balanced on your knee.
Pi Bakery is a welcome addition to the Pi Ecosystem!
Also, very interested in using this to make hardware dev more accessible to those familiar with web development:
http://webiopi.trouch.com/