The Dream Wind Chime is a gadget that resembles a glass wind chime. It can be used to summon sleeping people to rise from their sleep without actually being awake.
The Dream Bell can only be used on sleeping people (in some extends, those whom are unconscious or half-asleep or in a trance are excluded).
The user may call a person's name while ringing the Dream Bell. They will rise and sleepwalks (somnambulism) towards the Dream Bell's user. Although rather slow, they may perform various physical activities like playing soccer and jumping rope. Even though the person is practically still sleeping, their personality is still similar as they are awake. A person summoned by the Dream Bell doesn't seems to be able to speak properly, as sleep talking is always an unclear speech (often in a form of mumble).