5:45 a.m. I am starting to type this on the start of what is the 3rd day, although really Monday wasn't really a proper day of the experiment so this is the start of the second real day.
Yesterday I realized quickly that 6 hour periods wouldn't be possible and so have switched to the more standard 4 hour blocks of 3hr30 being awake, 30 min sleep. During the day has been fine, and I've been able to get some sleep at each of the set time periods, but for some reason I haven't been able to sleep at 1130pm-midnight. This has made the early morning period being awake from 4am-730am very difficult. Yesterday I gave in and had a couple of hours sleep and I'm so close to doing the same again as I type this!
During the day everything has been fine. I'm probably at around 60% efficiency due to tiredness so rather than choose some hard technical stuff to do I've been catching up on screencasts and podcasts I've been meaning to watch and listen. When I have decided to try and accomplish a bit of work I do seem more focused to do it. I guess this is because you have in your mind there's 3.5 hours to get this done before the next break rather than knowing you have 16 hours in a day and leaving it right until the end.
The other problems with being awake during the early hours of the morning:
1, you have to try to be quiet to not wake the other half up
2, the house is very very cold!
It's 6am now, I'm sure I can make it through to 730am.....I'm off to make a cup of tea!