sedation
"I have been a poor sleeper for a few years now due to anxiety related issues. After having tried both benzos and z-drugs, which only really made things worse, I have been using atarax with good results. Strangely for me a small dose (12.5mg) seems to work as well as a larger dose, which definitely wasn't the case for me with other drugs. 

On the down side it can leave me feeling a bit spaced out for several hours after waking."