Choosing a life-like and life-sized doll is important when placing this activity on your Practical Life shelf. Although the demonstration sheet, below, states the targeted age level as 6-9, one could confidently place this in the primary-age classroom as well.
How to swaddle a baby (step-by-step visual instructions):
How to diaper a baby...with a cloth diaper (preferred) and with disposable diaper:
The demonstration sheet, contributed by Kaori Fujita: