The Lulla Doll by Roro caused a social media sensation when she first appeared on the scene, and for good reason. Parents swear this soft, sweet little doll has the magic touch when it comes to baby sleep issues.

These gentle noises can help youngsters of all ages relax and sleep, whether the child in question is a premature baby in a hospital incubator or a toddler trying to settle herself down at night.

Parents are wild about the Lulla Doll—so much so that the first run sold out within two weeks of release.

When it's Kai's bedtime, I ask him if he wants El (Lulla doll) to go to sleep, and he nods, smiling. He puts his little arms around her, hugs her, and drifts off to sleep. It has fast become his lovey. We are very careful with Kai's Lulla Doll, since he has such affection for her.

Sempre sold out da due anni, aiuta i bambini (e i genitori) a dormire di più e meglio

RoRo has been trying to keep up with demand and has grown 2,400%. The doll has recently come back in stock in time for the holidays, which hopefully means that some new parents will be getting the gift of sleep this Christmas.

What makes the Lulla Doll such a hot item? It is built to help babies and young children sleep better. Developed over the course of three years with input from doctors, nurses, psychologists, midwives, engineers, and baby testers, the Lulla Doll is designed to help children fall asleep.

A doll designed by an Icelandic mum to help kids fall asleep has seen sales sky-rocket. The super-soft ‘Lulla doll’ stimulates the sounds of a mothers breathing and heartbeat, which is reported to help children sleep for longer.

“Ridiculously high bids for ‘sleep doll’ prove how damn desperate parents are for sleep,” the headline screamed. “This doll might make your infant sleep, but it might come at a cost.” Turns out sleep-deprived parents around the globe had heard about this magical product, the Lulla doll, and bought them all.

It’s no secret that parents have been fantasizing about their babies sleeping through the night since the dawn of time. Thanks to the Lulla doll, your deepest, darkest fantasy may actually become a reality.

Naturally, parents are freaking out about this magical doll. The first 5,000 sold out immediately, and demand has only grown from there: One eBay bidding war pushed a single Lulla Doll's price up to $350

You can’t put a price on sleep! The Lulla Doll — designed to soothe fussy babies at bedtime, parents are bidding up to $350 for the sold-out toy on eBay

There’s a new weapon in the never ending quest to help babies sleep and settle well – and her name is Lulla.

Created in the land of the midnight sun (and fire!) by Eyrun Eggertsdottir, whom wanted all babies to benefit from the positive effects of closeness.