SURVEYSDown arrowS177 : QUESTIONNAIRE S177 : FINAL FIELD FORMDown arrowQUESTION S177.Q17Question 17: Multiple ChoiceSurveyPsychoneurotic StudyQuestionnaireFinal Field Form17 When you were last on active combat duty, about how many hours of sleep did you average each 24 hours?Refine results