What age can you give your child a proper pillow?

[RedRobyn2021]

I gave my daughter a toddler pillow when she was about 20 months, she's now 3

When can I give her a proper pillow?

Toddler pillows are as flat as pancakes in case someone is wondering what I mean

Mine has had once since he was 2, once he went into a single bed as opposed to a cot bed so there was enough space.

We got a toddler pillow (and duvet) from John Lewis, it's lovely and thick and fluffy. DS(2) has slept so much better since we gave it to him.

18 m with dc1 when we transitioned to a cot bed. Check out Gro bedding. The pillow is attached in a pillow to the fitted sheet. Makes it a lot safer.