I suggest no. Many of us are used to take several coffees during the day and then having problems to sleep during the night, the reason, this two characters. I left Coke 2 months ago and I am sleeping better. Coffee, I still feel that I need it. Maybe is better a tea. Just try, at the begining is difficult but is not impossible. Take juices, water, and icetea. I was adict to coke. I used to take 6 glasses per day and you can´t imagine how different I feel know.