No Caffeine For 30 Days

In many ways, this 30 Day Experiment may be more difficult than Consume Zero.
I'm going to give up all caffeine (i.e. coffee, tea, chocolate, etc.) for thirty days.
Rules:

I can't have coffee, even if it is decaf. I want absolutely zero milligrams of caffeine and decaf tends to have 7-8 mg per cup.

I'm also not sure how I feel about my coffee beans being soaked in methylene chloride before I eat them, which is also used as a paint stripper. This is the most common way the caffeine is removed.

For the last several years my morning routine has started with a cup of espresso - either a plain double espresso or an Americano.
My plan now is to start my mornings with a hot water. I think even more than the taste of coffee or the caffiene, I just want a hot drink in the morning, so this should be an okay replacement.

I also expect to sleep better. I will be measuring my sleep with a Withings Sleep Analyzer and for the last 7 days (with caffeine) my sleep scores have been as follows:

For the last year or so I have been trying to keep my coffee intake to before noon, so I don't expect to actually sleep much better. But, hopefully, a little bit better.

It is the morning of my first day of the experiment and I'm tired. I only got about 6 hours of sleep last night, so today I am wishing I had a coffee.
However, though it's not doing anything to wake me up, I have a mug of hot water next to me as I write this and I do enjoy it.
Update 9:00pm: I had a headache all evening, but whether or not it was from not drinking caffeine I can't say.

I can't say whether or not this has anything to do with not consuming caffeine, but check out my sleep score today!

I am inclined to think this is not just because of not drinking caffeine, but if it continues like this I certainly will continue abstaining from caffeine.

Update 9:00pm: I had a really bad headache all evening. Whether this is related to no caffeine or not I cannot say, but I will say that I almost never have headaches and my first two in a long time were these two days after quitting caffeine.

Six days in and I'm feeling great. After a couple days of pretty bad headaches, and one (possibly unrelated) day of feeling very down, almost depressed, I feel really good again.
I can't say how much of the negative effects were related to cutting off caffeine, unfortunately, as I would need a bigger test base than just myself.
What I can say, so far, is that I'm considering cutting caffeine, or at least high doses (>~35mg), out of my life completely.
Honestly, I haven't missed coffee at all, which was my main and biggest source of caffeine. I thought I would miss it greatly, but I drink sparkling water and sometimes hot water in the morning and that's fine for me.
Occasionally in the afternoon I steep a "tea" of turmeric and ginger (obviously caffeine free) and drink that to enjoy a hot and tasty beverage.
I'm excited to see where the next few weeks go and if I'm ready to let coffee back into my life in the future or not.

Almost a week and a half in now and I'm still feeling good.
The biggest surprise so far is that I have not once craved my morning cup of joe.

In the last several years I could probably count on one hand the number of times I didn't drink a coffe.
Now, after a week and a half without it, I don't even have a desire for it.

My sleep scores and average for the first seven nights without caffeine, as measured by my Withings Sleep Analyzer, are as follows:

Crazy! I thought my sleep wouldn't improve, or if it did it would be negligible, but it went up 11 points on average!

After this experiment, I'm highly considering never drinking coffee regularly again.

Well, the experiment is now over and the benefits (or lack of disadvantages, really) have continued. Here are the changes I'll be making permanently:

This is a crazy change for me as I haven't gone two days in a row without a coffee in several years.

I will certainly not drink coffee after noon, though I was trying not to do that before the experiment also.
I will not replace my coffee habit with a tea habit, or any other caffeinated beverage or snack.
I'm going to do my best to avoid caffeine altogether, including when it is in chocolate.

It's not that I found my life to be so much better without caffeine, it's simply that I realized I don't need it.

I'm interested to hear if you have had a similar experience. If so, shoot me an email letting me know your thoughts!