It's more about whilst in a cot and having these items.
It all changes whilst in a toddler bed. I presumed he was still in cot since my 21month old is.
That's ok it's also a small misunderstanding for use of descriptive word 'comforter'.
I said take both being the comfort material (material nappy) he associates with the dummy - I wasn't suggesting a doona / blanket type cover