The expert hired by Meghan to teach Doria to be a grandmother

As all new parents know, a lack of sleep is often the most difficult things that comes with having a baby.

The change in routine can also affect extended family tasked with babysitting duties, as in the case of Doria Ragland, the mother of the Duchess of Sussex.

She is staying with her daughter and Prince Harry at Frogmore Cottage, to help with their new son Archie Harrison.

Meghan is said to have hired a pediatric sleep consultant to prepare Doria for grandmother duties, according to multiple media outlets.

Known as The Sleep Fairy, Brandi Jordan provides families with helpful strategies that will enable them and their babies to get much-needed rest.

Her personalised overnight consultations cost around $4708.

According to US-based The Cradle Company, Jordan is a qualified paediatric sleep specialist, newborn care specialist and a postpartum doula.

She's previously been hired by actresses Julia Stiles, Rosamund Pike and Megan Fox, according to reports. 

"I don't comment on new or old clients, but I do help lots of grandparents," Jordan told Inside Edition. 

"My goal is for people to really be in alignment with what feels good so that really means doing small things over time.

"So that means setting a bedtime that works for you, having a bedtime routine ... that might be doing dinner and books and baby massage and a little bit of bedtime story."

When the Duke and Duchess of Sussex introduced their new son to the world's media on Wednesday, they both spoke about how gentle natured Archie is.

"He's got the sweetest temperament, he's so calm," Meghan, 37, said of the newborn, with Prince Harry joking: "Wonder where he gets that from?"

"Parenting is amazing...we're just so thrilled to have our own little bundle of joy," he added.

"It will be a nice moment to introduce the baby to more family and my mother is with us as well," Meghan said.