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

https://www.runway-bookmarks.win/ideally-keep-your-bedside-table-5-10-cm-lower-than-your-mattress-top-this

For the most comfortable setup, aim for your nightstand to sit level with the top of your mattress or just 5 to 10 cm below it. This makes reaching for your phone or a glass of water effortless while lying in bed