Can I give my 18 month old a normal pillow?

[Smurfy23]

Dd normally sleeps flat in her bed in her sleeping bag. Shes got an awful cough and cold though and struggling to sleep.

We are on my bed lying on about 6 pillows and she is finally sleeping.

Is it safe to just give her a spare adult pillow we have in the house? Had planned to get her a toddler one but she could do with a pillow now.....

Am aware this could be a daft question....

Yes as long as it's not too soft and squishy. My 2 got a fairly flat adult sized pillow from age 1

Yes, mine were in full size single beds with duvet and pillows at 18 months.
Toddler pillows are just normal pillows but smaller to fit a toddler bed.

Perfect thanks!