The Wakeful “Type a” Student

Abstract

Eight type A students and eight that were type B slept in the laboratory for three consecutive nights. Type As showed more fragmented sleep, i.e., more spontaneous awakenings from sleep. No difference in REM pressure between As and Bs could be demonstrated, contradicting the hypothesis that both the personality traits of type A individuals and their coronary-proneness might be explained by chronic REM deprivation of type A individuals.