Retailer Amazon will continue to sell sleep positioners for babies despite warnings they can suffocate infants.
Tesco has removed the baby pillows from its website as a "precaution " What are baby sleep positioners?
The positioners, sometimes called nests or wedges, are meant to keep the baby in one place on their back and are marketed as suitable for use for infants of up to six months of age.
"Our team will be informing sellers and removing any listings that contravene our policies".
The product aims to keep a baby in one position while it sleeps.
Positioners are still available via some other United Kingdom retailers.
A health watchdog has warned parents that baby sleep positioners can cause their newborns to suffocate following reports of 12 deaths in the US.
In March 2017, British charity Lullaby Trust, which campaigns to spread safer sleep advice to parents, urged parents to put their babies to sleep on their backs.
The FDA first issued a safety warning seven years ago, saying "in light of the suffocation risk and the lack of evidence of any benefits, we are warning consumers to stop using these products".
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Mothercare, who were also selling a positioner, also told the BBC it is no longer for sale.
John Lewis has removed the Cocoonababy Sleep Positioner from sale but still has a range of "nests" and "pods" available including the Cocoonababy nest and the Sleepyhead. Because despite the fact that these products are meant to prevent babies from rolling over in their sleep, the Food and Drug Administration (FDA) has linked them to at least 12 infant deaths in the U.S.
The Food and Drug Administration (FDA) in America say the product may lead to tots sleeping in a position that could cut off their oxygen.
"These products were sold by a third party on the Tesco website, not sold by Tesco itself".
Boots said it is removing the sale of all sleep positioner products "whilst we investigate further with our suppliers".
On its website, the FDA says the positioners should never be used, and advises people to always put babies to sleep on their back inside an empty cot.
"Babies are at higher risk of sudden infant death syndrome if they have their heads covered and some items added to a cot may increase the risk of head-covering and can also increase the risk of accidents".
Here's what the AAP does recommend when it comes to safe sleep practices.