For those with concerns of using the Sleepyhead.
The Sleepyhead is a multi-functional baby and child product. The Sleepyhead is not a sleep positioner.
The Sleepyhead also passes the British Standard for air flow through infant pillows, BS 4578, that was published in 1970 and confirmed in 2013.
We understand sleep positioners are intended to keep babies in a specific position while sleeping, such as through the use of straps or wedges that conform to the baby and keep the baby in a set position. Unlike a sleep positioner, a baby can move about in the Sleepyhead.
For further info http://www.b-p-a.org/bpa-org/NewsArticle.asp?Id=1274