It wasn't until 1993 that bassist Simon Hensworth joined the group and the band's name was changed to Ammonia.

The group's success was due mostly to its hometown style of recording and word of mouth.

The trio released a cassette of recordings and became a well-known band in Perth.

Again the band was supported by Triple J, who played a number of songs from the EP, expanding their fan base around Australia, and ensuring another successful tour.

Sleepwalking included the first official release of "Orange Juice" and aided by continued touring, saw the band crossover from Triple J to commercial radio.