i use an adult soft pillow for him but have to place him higher , cos there's 1 case of ear infection i heard from the mum group i joined, resulted from always drinking milk lying flat
My toddler only started using a pillow at 5yrs old. no matter how i tried recommending him a pillow even with the most premium brand’s. he will just slide down from the pillow
and I think it's very interesting what they say https://janabebe.com/en/blog/at-what-age-should-my-baby-use-the-pillow.html
babysafe caters for infants to toddlers