For the best comfort, aim for a bedside table that sits level with your...

https://lima-wiki.win/index.php/The_Gold_Standard:_Bedside_Table_Height_for_a_Pillow-Top_Mattress

For the best comfort, aim for a bedside table that sits level with your mattress top or about 5 to 10 cm lower. This makes reaching for your phone or a glass of water effortless