Peter Alexander has clocked a 15% growth in sales for the first half of fiscal 2017 to $114.4 million.
This is on the back of strong total like-for-like sales across Australia and New Zealand.
The sleepwear giant is now on track to see annual sales exceed $250 million by fiscal 2020.
A surge in online sales, an expanded childrenswear line and "exceptional" growth from an expanded range of plus-size clothing are driving the charge.
Peter Alexander opened eight stand-alone stores and four Myer concessions in the first half of fiscal 2018.
There are seven additional stores slated for the second half, as well as the launch of Peter Alexander Bath & Body in April 2018.
The opening of a stand-alone Junior store at Highpoint Shopping Centre in Victoria in the fourth quarter.