code: function(){
          if(!this.allowSleep||this.sleeping)return;
          this.linearVelocity.init();
          this.angularVelocity.init();
          this.sleepPosition.copy(this.position);
          this.sleepOrientation.copy(this.orientation);
          /*this.linearVelocity.x=0;
          this.linearVelocity.y=0;
          this.linearVelocity.z=0;
          this.angularVelocity.x=0;
          this.angularVelocity.y=0;
          this.angularVelocity.z=0;
          this.sleepPosition.x=this.position.x;
          this.sleepPosition.y=this.position.y;
          this.sleepPosition.z=this.position.z;*/
          /*this.sleepOrientation.s=this.orientation.s;
          this.sleepOrientation.x=this.orientation.x;
          this.sleepOrientation.y=this.orientation.y;
          this.sleepOrientation.z=this.orientation.z;*/
  
          this.sleepTime=0;
          this.sleeping=true;
          for(var shape=this.shapes;shape!=null;shape=shape.next){
              shape.updateProxy();
          }
      }
docs: Sleep the rigid body.