Sleep is one of the most popular topics of conversations for parents.

From the moment you bring your little one home, people will ask if they are a good sleeper.

But sleep issues are not confined to the newborn stage as challenges continue for parents throughout the toddler years and beyond.

Speaking on the first episode of the second series of Be's parenting podcast, Is This Normal, Erica Hargaden, a paediatric sleep consultant with her private practice Babogue, describes sleep in the first three years of a child's life as a "roller coaster".

For more info from Erica, visit her Instagram or Twitter.