A new doll that promises to help your baby sleep through the night is causing a frenzy amongst new parents.
The Lulla Doll was created by three Icelandic mums who teamed up with manufacturer Roro to create an army of soft, gender-neutral dolls.
It retails for around $99 - but at this stage it is completely sold out! There are some available on eBay, but they're going for almost triple the price.
It works as follows: Mums and dads are encouraged to allow the doll to absorb their smell before transferring them to the child.
"We got our Lulla Doll from Mrs.Greenway on Monday and it's already been a life saver! I can finally slip away from my son and spend time with my daughter during the day and he had his longest stretch of sleep during the night. Absolutely amazing doll!" - Justine, Canada
See this Instagram photo by @lulla_doll * 29 likes
A stockist told the Daily Telegraph she has a waiting list that backs all the way up until September.
"They’re going out the door as fast as I can get them," she said.
New mum Rebecca Ilie said, “I wore the doll for a couple of days so it smelt like me, then we put it in his cot. His sleep was dramatically improved within days and by three weeks he was sleeping through the night".