Ms Zoe Chu, 41, coaches new parents to sleep-train their babies, but struggles sometimes to get her own kids to sleep early.
Twins Brayden and Dylan Saga, 15, get about nine hours of sleep on school days, while 10-year-old Callum gets almost 10 hours. They have to report to school before 7.30am, but the twins enjoy a later start once a week.
A version of this article appeared in the print edition of The Straits Times on August 23, 2021, with the headline Hush now and go to sleep. Subscribe