Not many people are diagnosed with Sluggish Cognitive Tempo. Anyone who is would likely know why so I won't get into that. Just to say the ADHD relevance is that 30 to 60% of ADHD-I people are comorbid with it according to research and may even be misdiagnosed as ADHD instead of SCT.
For someone who is diagnosed with SCT, do you have daytime sleepiness even on a regular schedule? Then in the evening naturally be more awake and less symptomatic, even though you may be feeling a little sleepy from being awake or active all day? Then have a hard time falling asleep and staying asleep with quality sleep. Then in the morning find yourself dead tires when you need to get up and, well, sluggish? Me, even if I am tired I have a hard time falling asleep. Eventually I do only to wake up after brief wake ups to roll over about 3 or 4 hours later. Then it usually takes take a while to fall back to sleep. Then another hour or 2 after that I reach deep therapeutic sleep, followed by extreme difficulty getting up when my alarm clock goes off.
When I was on a strict daily schedule for many years and no caffeine after lunch at 12 noon. I would still about once a week not make it through my bedroom doorway on the way to the bathroom for a shower and hit my shoulder on the door jam. After the alarm going off constantly without the snooze bar for 45 minutes and forcing myself to get up so I am not later than usual for work. Then breakfast, get dressed, all while rushing to work. Getting to work 8:30ish, half hour late. Well awake from rushing and have a natural wakefulness that lasts an hour or 2 after I finally get moving. Then a gradual decline so that by 10:30 to ll a.m. I am nodding off in front of the computer trying to use my coping mechanisms just to stay awake, not even to mention the lack of attention and focus falling asleep provides.
I also often would have a second slump in the late afternoon/early evening that could last for hours before I naturally wake up. Even on days I didn't have caffeine or a lot of sugar during the day.
I am not diagnosed with SCT but am positive I have it. I won't get into all the reasons why at this time. Just looking to see if people with SCT have the same issues as I describe them. Reason being, is that if I truly have SCT, and others have my same or similar symptoms. I think I can contact some of the researchers on the subject and advance research a decade just with the understanding alone. Assuming it is true. I did contact one researcher who had done something a while back and not actively doing SCT research. She thanked me for finally being able to put words to it and describe it and be able to utilize that to her own patients. If it is just me, then that is good to know too LOL.
I describe to myself 2 states of mind. My "Day Brain" and my "Night Brain". Seems like whatever the neurochemical issues is during the day, after 12 hours for me give or take, I transition into the more functioning, less symptomatic "Night Brain". Even though being up all day may have its own pressure on wakefulness by the evening. By bed time I am just not tired enough. Have been on prescription that gave me great sleep to rule out sleep disorders for my ADHD differential diagnosis. Helped a lot but symptoms were still enough to be a clinical issue.
If this understanding is correct, I believe researches have been beating around the issue but never really finding it. I believe that issue to be some kind of a deficit with a function of the brain that partially or completely resolves itself at night. Which would give researchers something testable to look for the absence or deficiency in the day vs it's existence or significantly increased incidence in the evening. That should provide a limited set of things capable of these wakefulness issues. Find that or those things, then work can be done on selective drugs for optimal therapeutic effect. Some researchers also believe there may be sub types of SCT so if it is not just me, and I have SCT, and the issues are SCT, then it may only apply to a specific subtype anyway.
And I am fully aware that daytime sleepiness is just one of the many symptoms associated with SCT. So by sleepiness I really mean sleepiness and increased symptoms with it and the opposite at night. Just easier to write al this without qualifying symptoms all the time.
And, just for the record. For myself it is not simply a day/night thing. Otherwise it may just be a circadian rhythm issue triggered by sunlight. With the shift in my schedule, the symptoms shift with it. For example my "Night Brain" as I dubbed it was going this morning from about 4am till about 1pm when I went to bed. And had a hard time waking up (Day Brain) in the early evening when my usual "Night Brain" would be kicking in.