I have mostly one coffee though could easily drink more -I tend to listen to health things I hear or read, and as someone once told me "coffee leaches calcium from bones" I then stopped drinking my 3 cups per day.
I can have coffee minutes before going to bed and will still sleep, however I generally stick to my one per day, sometimes two.
Only the one and I'm trying to cut it back to one a week, which I have done for about a year up until recently when it crept up to one a day. I feel tireder since I've been drinking a daily cup of coffee again, so much as I like it, it has to go!
None here either. I used to drink coffee, but after being diagnosed as gluten intolerant I became more aware of how my body was reacting to different things I put in it. Coffee gave me mild stomach pains, so I just decided to switch to tea. There are plenty of teas that still have some caffeine in it if you feel the need, and with so many blends around now I can really enjoy the variety.
I once drank countless, but now I have 2 in the morning (just some black coffee at home), and if I have another one it would be a half decaf at around 3pm. (that 3rd is out of habit than anything, and I often don't worry about it).
Two. One before I leave the house and one around 10 o'clock. Only after the second one I start waking up. I try to refrain from afternoon coffee, otherwise I'm staring at the ceiling at least half of the night.