Looking for a good bed railing for my mom. Any suggestions?

Mom fell off her bed, so I decided to remove the frame. Now her bed stands on four wooden blocks. The ones you find in Bed Bath & Beyond

Unfortunately, she fell again. Thank God both times nothing happened, in other words, no fractures.

I'm overwhelmed with so many different options on Amazon.

I will really appreciate any input.

BTW, she doesn't qualify for Medicaid.

I'm her only caregiver, she's 80 years old with moderate to severe dementia. I'm trying my best to keep her at home.

Thank you all in advance.