医生建议在窗户上安装安全锁，以防梦游者夜晚意外坠落。

Doctors recommend installing safety locks on windows to prevent ___sleep-walkers from falling accidentally at night.

许多人在消费主义社会中只是梦游者，从不质疑自己购买的东西是否真正需要。

Many people in consumerist society are just ___sleep-walkers, never questioning whether what they buy is truly needed.