Expert Sleep Medicine is the Sleep Medicine Division of Family Allergy and Asthma. Our sleep experts, Drs. Robert Karman, Warren Shaikun, and Christopher Howerton, as well as A.P.R.N. Tiffany Helmerich, have provided outstanding care for our critically ill patients in the Intensive Care Units at Norton, Jewish, and Clark Memorial Hospitals for greater than a decade. During their time working with their pulmonary and critical care patients, they developed a passion for working with patients that have a variety of sleep disorders.