How to get post IDs of posts which are Sticky and those which lies in a Particular category?

I am using this code to get IDs of posts which are in a ‘featured’ category. But can I retrieve those posts as well which are also sticky, using the same query?

$post_ids = get_posts(array(
  'numberposts'   => 8, 
  'category_name'    => 'featured',
  'orderby'          => 'date',
  'post_type'        => 'post',
  'fields'        => 'ids'
));  

Right now I am using two queries to get the desired results, but I think there is a better way to do this:

  //get featured ids
  $post_ids = get_posts(array(
     'numberposts'   => 5, 
     'category_name'    => 'featured',
     'orderby'          => 'date',
     'post_type'        => 'post',
     'fields'        => 'ids'
  )); 
  //get sticky id
  $sticky_post_ids = get_posts(array(
     'numberposts'   => '1', 
     'orderby'          => 'date',
     'post_type'        => 'post',
     'fields'        => 'ids'
     'post__in'     => get_option('sticky_posts')
  ));