I love the taste of this coffee and since I am very sensitive to caffeine I thought it would be a good option. I started having serious trouble sleeping over a months time. I hadn't changed anything in my life so it didn't make sense. I couldn't sleep more than an hour and a half at a time without waking up for an hour or 2. I tried a few things and nothing helped, then I realized the only real change was that I had started having a cup of coffee every morning. At this point I had made it through 1 box and into the second so I stopped drinking the coffee and immediately started sleeping better. I typically only get caffeine from chocolate or iced tea and I've never noticed this effect from them... I have sent a request just for my own knowledge to find out exactly how much caffeine is in this coffee. If you're sensitive to caffeine you should be careful with this product.