Went on a cruise (not on Disney) to Alaska, amazed how early folks went to bed. Even on a seas day. Pretty quiet after 10 pm. First cruise I took 30 years ago, the night club didn't even open until 1:30 am. Just seems to me that people are going to bed earlier. Are you? I should note, I have never had a "normal" work schedule, thus my sleep schedule has never been normal. 25 years of working 11 pm to 7 am and sleeping 9 am to 5 pm, and these days due to my work schedule (and that of my wife) normal bed time during the week is 7 pm.