Its breathing and heartbeat noises have done what many others couldn't - get our wee Prince off to sleep, and keep him in the land of nod for up to three hours, after a couple of pretty rough weeks.
We fired up the Lulla Doll and placed it on his torso on Friday night while I held him - instructions state it shouldn't be placed in an infant's cot until they reach age 1. Within 10 minutes he was in a deep sleep.
And it wasn't just a short-lived success. The doll was brought back into action again after early and mid-morning feeds yesterday - and again Blake nodded off into a settled sleep.
On the chest of Blake's Lulla Doll is a love heart. We love you, Lulla Doll.
Before exhausted parents jump in, baby whisperer Dorothy Waide warns crying is a baby's only way of communicating, so when trying to quiet a baby parents first need to work out what their baby is trying to tell them.
Are they overtired, hungry, in pain or sick?