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

https://brooksfznx367.theburnward.com/the-definitive-guide-to-nightstand-height-for-storage-platform-beds

For the most comfortable reach, aim for your nightstand to sit level with the top of your mattress or just 5-10 cm lower. This makes grabbing a glass of water or your phone effortless while you are in bed