Final answer:
During the 3rd PP day, the nurse would most likely observe that the client sleeps whenever the neonate isn't present.
Step-by-step explanation:
During the 3rd PP day, the nurse would most likely observe that the client sleeps whenever the neonate isn't present. This is because it is common for mothers to be exhausted after giving birth and they may take the opportunity to rest when their baby is asleep or being cared for by someone else.