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

https://www.bookmark-xray.win/the-golden-rule-for-bedside-tables-is-keeping-the-top-surface-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