It is but logical to think that too much caffeine consumption does not only affect your sleeping pattern but also your baby's, especially newborns. (breastfeedbub.com)
It is possible that increased monitoring and attempts to control sleep may negatively affect sleep quality. (sciencedaily.com)
Luckily, having a cup of coffee a couple of hours before bed doesn't affect my sleep at all, but many people have sleep difficulties due to caffeine. (kimscravings.com)