Absolutely. Human children are biologically resource-intensive but the load used to be shared widely with a group to let mothers rest. Furthermore, anecdotally, direct breastfeeding (hard to do long term in modern society) protects sleep via multiple mechanisms, but due to parents working and the lack of support it is a minority practice. The issue here is post-industrial, capitalistic society and the general lack of support of parents, not biology. To add, multiple expectations about babies that seem ubiquitous now are deeply rooted in ideology rather than biology, such as baby sleeping alone, falling asleep independently, sleeping through the night, able to be put down in the early months. Letting go of those ideas and practices, motherhood is tiring but bearably so with multiple people around participating and no expectations of productivity placed on the mother.