The All-In-One Pyjama can help keep the wearer warm, especially if they are inclined to kick off their bedding at night. They can also help to prevent smearing, especially the zip back version, as they can stop hands reaching the nappy. The convenient zip fastenings mean that nappy changing can be done more easily at night.
The Zip Back Pyjamahas a zip pull at the back of the neck, making it harder for the wearer to undress or access their nappy. The zip is hidden under a flap of material that affixes with velcro. It alsohasintegral feetwith non-slip soles.