Could How You Sleep Be Linked to ADHD?
An explanation for lost sleep: Late circadian rhythms in those with attention-deficit hyperactivity disorder may make them natural night owls
The researchers measured the sleep hormone melatonin in the saliva of 40 subjects and found that its production began 105 minutes later in the ADHD group: at 11:15 p.m., compared with 9:30 p.m. in a control group. They also found that the adults in the control group fell asleep on average two hours after melatonin production began, compared with three hours later for the ADHD group.
.. core body temperature and moving patterns associated with sleep were also delayed in people with ADHD
.. noticed large numbers of people with SAD also had ADHD.