Get latest sticky posts in loop.

sticky-posts.php

<?php
$sticky = get_option( 'sticky_posts' );
$args = array(
	'posts_per_page' => 1,
	'post__in'  => $sticky,
	'ignore_sticky_posts' => 1
);
query_posts( $args );
if ( have_posts() ) :
  while ( have_posts() ) : the_post();
// loop code


	endwhile;
endif;
?>