Tesco, John Lewis and Mothercare are among retailers which have removed baby sleep positioners from sale due to concerns raised about the risk of suffocation.
The move follows reissued advice from US health regulator Food and Drug Administration (FDA), telling parents not to put babies in the products.
It said the positioners - also know as nests or anti-roll products - "can cause suffocation that can lead to death".
Sleep positioners, which feature raised supports, intend to keep babies under six months old in a specific position while sleeping.
But the FDA says it is "dangerous" to use this type of product to hold an infant on their side or back.
Tesco, which sold the products on its website through a third party, said it has now removed them from sale.
A spokesman added: "We have removed these products from our website as a precautionary measure."
A spokeswoman for John Lewis said: "We have one baby sleep positioner, the Cocoonababy Sleep Positioner which has been removed from sale. As an additional precaution we have also withdrawn the Cocoonababy Nest, which is a sleep pod, while we await further advice and reassurance from the supplier."
It has been reported that other retailers - Mothercare and eBay - have also stopped selling the products.
In 2010 the FDA issued a recommendation to consumers urging them to stop using sleep positioners following reports of 12 infant deaths in the US over the previous 13 years.
The latest statement from the FDA reminds parents to "never use infant sleep positioners", saying in most of the dozen cases babies suffocated after rolling from their sides on to their stomachs.
The FDA recommends a bare cot is the safest place for babies to sleep and said they should always be put on their backs.