Why would you choose a horizontal or vertical wall mode? I am regularly asked this question. And it's also a tricky one.
You can of course make a consideration based on space. Then the vertical wall dresser is the narrow one. But thicker than the wall-mounted medium.
But there are also ergonomic considerations. What is better for your body after childbirth or Caesarean section? I've put it to the pelvic floor physiotherapist who works with the NVFB (Dutch Association for Physiotherapy in Pelvic Problems and pre- and postpartum healthcare).
In the hospital she teaches midwives to change their baby vertically. This is because you stand right in front of the dresser and you don't have to twist your body. As a result, there is minimal tension on the abdominal muscles.
If your baby gets a little bigger he will become more and more mobile. You will notice that your baby will not remain on the dresser as a matter of course. With the vertical chest of drawers you have less control over your child than with the horizontal chest of drawers.
If you want to play completely safe, choose the vertical wall chest of drawers in particular.