In case you find you're getting too much sleep, here's a good summary of caffeine intensities:

http://www.theguardian.com/news/2013...-chocolate-tea

Didn't realise that tea is almost double cola!

Here's a link to the amounts in various brands of coffee, tea, chocolate

http://www.energyfiend.com/category/coffee

That article appears to suggest that the caffeine quantity "40mg in the same amount of black filter coffee" is the same as the amount in "the traditional americano".

"That's quite a generalization", I thought, so I did a bit of research and found this:

"from a beverage perspective - drip coffee has more caffeine.
65-200mg / 8 fl oz (BP)
(8-15mg /1 fl oz) (VP)

from a volume perspective - espresso has more.
30-50mg /1 fl oz (BP)
(30-50mg / 1 fl oz) (VP)

* numbers in bold (top) are from a 'beverage perspective' (BP); numbers in parenthesis are from a 'volume perspective' (VP)."

http://coffeechemistry.com/caffeine/...p-coffee1.html

In other words, one 8oz cup of strong coffee can contain as much caffeine as 6.67 weak espressos (or Americanos, Lattes etc)!

That's a good point. I hadn't thought of filter coffee as being particularly strong, but I suppose volume matters too.

I think getting a bean grinder and an espresso machine is the way to go, for any coffee lovers who want to accurately control their caffeine intake.

Possibly works out cheaper in the long run, too

Tea has a lot of caffeine, a lot more than people realise. However, the tannins in tea prevent it from being absorbed into the body as readily so you don't get the same amount of a hit from a cup of tea as those two cans of cola. Technically more caffeine but less effective.

If true, that explains it !! I've never understood how tea is said to have caffeine it it, yet it doesn't seem to provide quite the same jolt. Not that I particularly get a jolt from coffee either.

I've never felt much affect from caffeine, I can drink a can of soda right before bed, and sleep very well.

Ditto. Does seem to have a cumulative effect if I've had several cans throughout the day, though happily, I seem to have kicked that habit.

I was told that it isn't the coffee right before bedtime that keeps you awake but the one a couple of hours before

I used to drink huge amounnts of coffee and diet coke but gave up caffeine. Now i have decaf only and not too many of those. If i do have caffeine then i get palpitations and won't be able to sleep.

Was that caffeine causing you problems, and so you gave up? I don't like the idea of decaf coffee.

Yes, terrible sleep patterns and digestion problems. I gave up coffee completely as like you i didn't like the idea of decaf but after a while i started on decaf. I give guests decaf, they can't tell the difference some even comment on how good the coffee is.

I rarely have chocolate either which is awful as i love that stuff

Hmmm worth bearing in mind. Apart from the chocolate bit.

I know, it's a tragedy.

Have you talked to your doc about that? If not, it might be worth considered gastroscopy.