Try the FREE app called Timeriffic - availabile in the Play Store. I've used it for about 2 years now, and it's great for not only ringer profiles ... but also silencing notifications, turning wifi on/off, and changing screen brightness, etc., at night - or at whatever time it's desired.
Another great utility is "Shush!" ... which, when you slide the volume rocker down to silent/vibrate, it'll ask you how long you want it to remain in silent/vibrate mode - after which time it'll restore it to its previous volume.
And, NO, I'm not affiliated with either author - I've just found these two products together meet almost every ringer-profile need I have.