For many babies the cluster feeding stage starts early on, usually in the first two weeks of life and can go on until 3 - 4 months old. (breastfeedingneeds.com)
However, you should note that coffee during feeding stage is not healthy. (momdiscuss.com)
This avoided formula milk among this group of babies during the early feeding stage, which the authors suggest may have long term implications for future development of diabetes in these infants. (alcireland.ie)