When to give toddler a pillow at night?

My daughter will be 2 on December 1st and she has never been a good sleeper. Lately I have been giving her a pillow at night only until I go to bed (when I am watching her on the monitor) and she sleeps SOOOOO much better with it! If I give it to her she will sleep until I go to bed but when I go to bed I take it away and she wakes up within a half hour. If I don't give it to her she wakes up 1-2 times before I go to bed. I know the recommendation is waiting until age 2 but do you think 22.5 months is close enough? I don't want to risk her AT ALL but I don't know how much more she will gain in the next month and a half 🤷‍♀️ any insight would be amazing! Thank you ♥️

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