Well the experiment is now complete, and it is time to analyse the results. If you are interested in seeing how I felt during the experiment, take a look back at my initial thoughts and my experiences during Week One, Two, Three and Four.
Did it work?
I used to sleep for 7.5 - 8 hours per night, and I now sleep for 6.
Are the results sustainable?
I would say on balance yes. There are days when I am tired and need more sleep, and there are days when a biphasic regime doesn't fit with life. But there were days before when I needed more than 8 hours per night, and there were days when an 8 hour sleep didn't fit with life.
On average I don't really feel significantly more tired than I did before, although I do feel like my life revolves around the idea of nap time!
Is it worth it?
On the surface, this seems like a stupid question. I am awake for hours more per day, why wouldn't it be worth it? But I think to answer this question I have to compare the difference in how I spend my time in the evenings.
Before
5.00 - Prepare evening meal
6.00 - Open University work
9.00 - Work out
9.30 - Shower & prepare for the next day
10.00 - Watch TV/Personal development - blog, learning Spanish etc
11.00 - Sleep
After
5.00 - Prepare evening meal
6.00 - Open University work
8.45 - Work out
9.45 - Shower
10.00 - Nap time! **
11.45 - Prepare for the next day
12.00 - Personal development - blog, learning Spanish etc, perhaps some more OU work if necessary
1.30 - Watch TV
2.30 - Sleep
**This schedule is kind of variable, as depending on how tired I feel and what my evening plans are I vary my nap time between 6.00 and 10.00 pm.
So what's changed?
I get an extra half hour's workout time. This is good. I get an extra half hour's personal development time. This is also good. I get an extra hour's TV chillout time where I don't have to feel guilty that I am not doing something more productive. This is ok, I would rather be doing something more worthwhile but by 1.30 am I usually can't face doing much more than just sitting around. Sometimes I work around this by getting up at 6.30 am instead of 7.00 am so I can begin my core sleep a little earlier.
Will I continue a biphasic pattern?
I want to be able to say yes, but there is a nagging doubt in my mind which needs to be answered first. And this is -
"would it actually be any harder just to adjust to a single 6 hour core sleep?"
I would still have just as much time in the day, and wouldn't have to do the dreaded getting out of bed in the middle of the night thing.
So I think I may try spending at least 2 weeks taking a 6 hour core sleep (at the risk of undoing all my biphasic work I know!) to see what happens. If this proves to be no harder, I have to admit I would give up on the unnecessary complexity of biphasic sleep and never look back...
Watch this space!