I’ve developed some mobility issues as I’ve gotten older. I’m tall enough/not overly long armed enough that 22” means I can’t pick stuff up off it without having to bend/stoop, which I can do but aren’t ideal. Actually just measures my bedside table and it’s 27” and just about right. 22” would absolutely be too low, putting it about 6 inches below the top of my mattress, which means I can’t see or reach the CPAP machine without basically getting half way out of bed.