Sleep 1

01:02 to 05:32

(4:30 hours)

I'm pretty sure it took me at least 20 minutes to fall asleep for my core last night: I think I rolled over and saw the clock say 1:20. It wasn't frustrating like not falling asleep for a nap though and I felt relaxed.

Last night was a bit of a breakthrough as I felt really good and alert right up to about 15 minutes before my nap. I think this is what this pattern is supposed to feel like!

When I woke up I was dreaming again. This time I actually remember a very small fragment of the dream. All I remember is something about turning a car around in a car park.

I felt slightly groggy for about 5 minutes after waking.

Turning Around

Sleep 2

16:31 to 18:14

(1:42 hours)

Today I have felt really good all day! When I was walking home from work I still felt pretty alert, but I needed to go to sleep straight away as I am meeting a friend in town at 7:30pm.

I fell asleep straight away, and woke up after 20 minutes. I then drifted in and out for a while, and eventually fell back to sleep and woke up from the alarm.

I felt no grogginess at all after my nap and I feel good now.

Sleep 3

23:33 to 05:14

(5:40 hours)

I think I probably didn't need the extra sleep last night in the end. I woke up naturally at 4:30am, and went back to sleep, and then woke up just after 5 and got up.

The good thing about waking up naturally is that there is absolutely no tiredness at all!

The fact that I first woke up naturally after 5 hours (300 minutes) suggests that I had 3 full sleep cycles, and that my cycles are about 100 minutes long. It might be worth permanently lengthening my core to 5 hours in the long run.