How can parental time controls be set on an iPhone?

I'm fourteen years old, and my parents have decided that they want to take my iPhone 4 away nightly and give it back in the morning so that I don't stay up late on it, as I've done before and still do (I know, my fault, I'm not saying their doing so isn't right!). Since I'm willing to behave better and cooperate obediently, I told them I'm completely fine with turning it off myself at nights, but it's not good enough. I don't want to give my phone up because my mother likes to discipline me based on her shaky emotions often, and I'm afraid that if she's not happy with something, she'll just keep it (she doesn't like tell me exactly why she's punishing me and she doesn't specify punishments, basically if my actions overwhelm her she'll act in extremes instead of going by steady guidlines and rules). I know she has every right to, but I'm trying to avoid that in general. I suggested we just put controls on instead, turning it off at 11:00 P. M. But apparently iPhones are stupid and don't use and Smart Limits or things of the like, does anyone know any way to disable Wi-Fi and texting from my phone at a certain time, and turning it back on again at a certain time?

Lol it's impossible. BUT there are free texting apps and you can access apps like instagram and Facebook but you need disable Wi-Fi and enable 3G roaming

Take out sim card and block iphone from Wi-Fi for the nights… Matters what IPS you have

Your cute, and you can't. I've tried and the only things you can control are under restrictions under general settings.