For the most comfortable feel, aim for your nightstand to sit level with the...

https://www.bookmarkmaster.win/for-the-perfect-bedside-setup-aim-to-have-your-nightstand-sit-between-5-and-10

For the most comfortable feel, aim for your nightstand to sit level with the top of your mattress or just 5 to 10 cm below it. Most UK beds work best with tables in the 55 to 70 cm range