Police allege 21-year-old Mehrten Puruto stalked the woman and broke into her East Corrimal unit last week, before returning again and touching her in the early hours of Tuesday morning.

The woman screamed and chased the intruder away.

Police arrested Puruto at a home in East Corrimal yesterday, but this morning Wollongong magistrate Jillian Kiely released him on strict conditional bail, that bans him from all of Corrimal and requires him to wear an around-the-clock electronic monitoring bracelet.

Police will allege Puruto was initially spotted looking in the front window of a home in East Corrimal about 8.30am on March 19. He spoke with a woman before leaving.

He is accused of returning and entering the home over the March 20-23 weekend.

In the early hours of March 24, he then allegedly broke into the woman's home for a second time and touched her as she slept.

The woman reported the incident to police later that day.

Investigating detectives from Wollongong Police District arrested Puruto about 4pm yesterday.

He was taken to Wollongong Police Station and charged with stalking and two counts of committing a serious indictable offence during an aggravated break and enter

It is a condition of Puruto's bail that he live at a Bellambi address and that he not leave the house unless accompanied by his mother or father.

He must submit to electronic monitoring and to present himself to police during checks at the home up to three times a week.

He is banned from entering Corrimal or approaching or contacting the woman.

The matter is listed for committal at Wollongong Local Court on June 3.