Sleep training -- impact on child 5 years later?

Another "baby sleep strategy" post! This one focused on longer-term impacts of sleep training strategies.

This paper follows an experiment, where one group of parents/baby received nurse assistance (to help with baby sleep strategies), and the other didn't. Researchers also followed up after 5 years.

What did it find? No effect after 5 years -- on parent or child. (But in the immediate term, sleep training does help)

My takeaway? Try specific sleep strategies with your baby; but if it's too late and you didn't -- it's not a long term worry!