Apple TV Lock

I have just come over to Apple TV from the Nvidia Shield, On that machine, there was something called a 'Restricted Profile.' This profile has access to NOTHING. My wife and I set the Shield to the Restricted Profile whenever we did not want the 9 and 11 year olds watching TV. As far as I can tell, there is no way to lock the Apple TV completely. I know about 'Restrictions.' Those just don't do enough. Every other Apple Device....my iPhone X, MacBook Pro, iPad Pro, Apple Watch.......ALL have ways to require a passcode when awakening. Am I missing something?? Am I not looking in the right place?? All I want is to require a 4 digit passcode when the AppleTV comes out of sleep mode. That would be all I need? Does anything like it exist??

Thank you ahead of time for your help.

- David