Centering mouse when not used

Hello there Unity coders,

I have a for me simple looking question, although I can't figure it out myself.

I am making a game and i want the mouse the be set back to the center after a period of time when the player hasnt touched it. I am controlling my character turning with the mouse and if I move my mouse a tiny bid my animation allready blends into turning, this is what I want but when I haven't touched the mouse for like 3 seconds, it should get centered. I know that for centering you could use:

 Screen.lockCursor = true;
 Screen.lockCursor = false;

But I can't seem to figure out how to time it. This is the script that I am using to check if the mouse has been moved, its in C#.

using UnityEngine; using System.Collections;

 public class MouseCentering : MonoBehaviour {
     
     public bool MouseMoved;
 
     // Use this for initialization
     void Start () {
     
     }
     
     // Update is called once per frame
     void Update () {
         
     if(Input.GetAxis("Mouse X")<0){
     }
     if(Input.GetAxis("Mouse X")>0){
     }
     if(Input.GetAxis("Mouse Y")<0){
     }
     if(Input.GetAxis("Mouse Y")>0){
     }
 }
 }

If someone could give me the other things that I need to get my script finished, or send me a completly new JavaScript, I would be very VERY happy.

Thanks!