Vertical cot liners/protectors?

[AnaCav]

Hey everyone,

About to move my DS (6 months-old) from his Next2Me Chicco crib to his cot. I know cot bumpers are a big no-no because of the risk of suffocation, strangulation, etc., but what about these vertical protectors that you can put in individual bars (see pic). They're not made of fabric, rather that material that is like a hard foam. No ties used of course. (This picture is for you all to be able to visualize what I mean, and not the product that my husband - he's an engineer - will himself try to craft).

What do you guys think?

And is there any verdict about the airwrap mesh with velcro from PurFlo?




Somehow can't upload the picture here, will link it to another example, even though what I have in mind is not this material. But it is just to visualize the structure. The option would be to put them in just 3 or 4 bars at DS's head level. Still, wanna make sure there isn't a safety issue that I'm overlooking.

https://www.wraua.com/?productid=844161411_89

Why do you need anything

Because babies bump their heads against the bars sometimes + get legs/hands tangled in them.

My question is a safety assessment, not about our subjective understanding of needs.