For a lot of people, the negative sleep impacts overshadow any improvement in productivity as a result of the caffeine. If you've been drinking it for a while,

For a lot of people, the negative sleep impacts overshadow any improvement in productivity as a result of the caffeine. If you've been drinking it for a while, the withdrawal could take multiple months, so you might not be able to tell what your decaffeinated brain feels like until you've been off it for a long time.