How to get individual values from custom widget?

I have the following custom sidebar:

I want to know if it's possible to get the values stored in each widget individually. I already tried doing the following:

global $wp_registered_widgets;
$widgets = wp_get_sidebars_widgets();

echo pre;
var_dump($widgets['footer-1']);
foreach ($widgets['footer-1'] as $widget) {
  var_dump($wp_registered_widgets[$widget]); 
}
echo /pre;

But the first var_dump only returns:

array(5) {
  [0]=
  string(10) nav_menu-2
  [1]=
  string(6) text-2
  [2]=
  string(6) text-3
  [3]=
  string(6) text-4
  [4]=
  string(6) text-5
}

And the var_dump inside the foreach only returns this properties:

array(7) {
  [name]=
  string(4) Menu
  [id]=
  string(10) nav_menu-2
  [callback]=
  array(2) {
    [0]=
    object(WP_Nav_Menu_Widget)#4570 (9) {
      [id_base]=
      string(8) nav_menu
      [name]=
      string(4) Menu
      [option_name]=
      string(15) widget_nav_menu
      [alt_option_name]=
      NULL
      [widget_options]=
      array(3) {
        [classname]=
        string(15) widget_nav_menu
        [customize_selective_refresh]=
        bool(true)
        [description]=
        string(41) Add a menu to your widget area.
      }
      [control_options]=
      array(1) {
        [id_base]=
        string(8) nav_menu
      }
      [number]=
      int(2)
      [id]=
      string(10) nav_menu-2
      [updated]=
      bool(false)
    }
    [1]=
    string(16) display_callback
  }
  [params]=
  array(1) {
    [0]=
    array(1) {
      [number]=
      int(2)
    }
  }
  [classname]=
  string(15) widget_nav_menu
  [customize_selective_refresh]=
  bool(true)
  [description]=
  string(41) Add a menu to your widgets area.
}

I need what's inside of each widget. So for the texts, I need to retrieve what's stored in the textarea. Is this possible?