I actually prefer Bigelow to Celestial Seasonings. They have a great variety of teas. I have yet to find one I don't like with the sole exception of Green Tea with Mango (blech). Anything with any type of mint or chamomile is my favorite, but the fruit flavored teas work well, too, especially apple-cinnamon or blueberry. The key for me is variety. As we speak, I have three varieties of green tea (chamomile, mint and lemon) for the morning and 16 varieties of herbal teas for the afternoon sitting at my desk. I still drink coffee, but not nearly as much and I've pretty much licked my sleeping problems by limiting myself to only two cups of caffeinated tea drunk before noon. After lunch I switch to the herbal blends.