This is two diapers rolled up to use for the arms of the sleeper
Here are two diapers rolled up individually and used in each upper sleeve.
This is an idea of what it will look like.
I tied two rolled diapers together, as mentioned
Here are 7 diapers rolled up and tied to use for the body. I did another roll for the head but used 6 diapers
Here is an idea what the end product will look like