In addition to napping, customers can order services ranging from "girl pats customer on the back" to “stroking the girl’s hair for three minutes.” Creepy or curious - you decide. It's undoubtedly weird, however.
It’s not uncommon to find one that makes noise to block any uncomfortable sounds, gives off perfume, raises its seat automatically, warms the seat, plays music or has a built-in bidet. It's no wonder Western tourists can sometimes find them a little confusing.