For a comfortable bedroom, your nightstand should sit level with the top of...

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

For a comfortable bedroom, your nightstand should sit level with the top of your mattress or just 5-10 cm lower. This height makes reaching for your water or book effortless without straining your shoulder