Couldn't sleep

Most days I sleep before 12, and get up by 3:30-4am, just before fajr.
I have to run a few errands in a bit, but mummy told me to take a nap between 9-10:30am.

I had milk @ 5am, a conference call meeting @ 5:30am, spoke with Hafsa around 6:30am.
Woke up my brother for work after 7, ironed his shirt, and graded assignments until about 8:30am.
I went downstairs, washed some dishes and had breakfast with my father, that's when mummy suggested I take a nap because I had to for 11am, pick up my sister's friend and drop both of them for tuitions (not to mention search for the place since her teacher moved last week) and then take mummy to the doctor first, pick up some grocery and then to the dentist. I had to exchange a book myself.
I came back upstairs and spend about 10 minutes trying to get my sister out of bed. Did some work on my laptop and then @ 9:16, told her to wake me up at 10:20.

But, I couldn't sleep because....

What if I'm not able to wake up on time?
I hope mummy's ready on time so that my sister isn't late...
Oh dear, I've to type up the meeting minutes from today morning's meeting...
I'm glad my friend liked my gift that she received in the mail today...
And when am I going to study for my midterm that's due by Saturday?
Listening to 5 lessons should be a problem...
I never got that email from my team on the conference, I should follow up
Thank goodness I finished grading the assignments, they always take forever...
I have to practice verb tables for tomorrow's class.
Still haven't called up my friend to tell her I want to throw a party for her before she leaves for India to get married
I better schedule completing my hajj account for next week
Should I go swimming tomorrow?
What was her phone number? 8231966...Alhamdulillah, didn't forget!
Oh man, why can't I sleep!
I wish I didn't have to take the Kia today, it's no fun driving that car anymore
I wonder if my sister had breakfast? Did mummy go to sleep?
I didn't iron my clothes I'm going to wear... should I even sleep?
I should also study for my exam on Sunday sometime today since it's going to be quite intense...

Perhaps, reading a book will help, I might still be able to get 1/2 hour of sleep. I grabbed the Robert Fisk book. In retrospect, I should've grabbed the other book, The Tipping Point, since the pages I read were on prison torture during the Shah's regime in Iran. How horrible.
All of a sudden, my phone rang, and what do you know, a wrong number. Well, at least it pulled me away from the book.

I still have 22 minutes, if I really want to catch a quick nap...