Just a plugin that lets animals sleep at night. A configurable time for them to sleep from x time to x time in game. 
Being Worked On Let Animals Sleep at Night
- Thread starter snaplatack
- Start date
I already have a similar plugin in the works!
this sounds great for PVE and possibly some server optimisation 
Is it possible to randomize the sleeping and perhaps have them wake up if they're roused/attacked?
I'll take that into consideration