Sleep habit inquiry Question Title * 1. What is your gender? Male Female Question Title * 2. Which race/ethnicity best describes you? (Please choose only one.) American Indian or Alaskan Native Asian Black or African American Hispanic White / Caucasian Multiple ethnicity / Other (please specify) Question Title * 3. How many hours do you sleep each night? Less than 6 hours 6-7 hours 7-8 hours More than 8 hours Question Title * 4. What do you wear to bed? A full set of pyjamas T-shirt and pants/shorts T-shirt and underwear Pyjama pants without a shirt Only boxers/briefs Naked Other (please specify) Done