Mat or rug recs + transitioning to the floor bed

What’s everyone using? Can you share links?

We plan to have our 11 month old sleep on a full mattress on the IKEA slats in the corner of her room. There is already a rug in the middle of the room but it’s pretty thin, so I want to get some mats or another rug to put around the edges of the mattress.

Can someone point me to some links to the mats that you use? I prefer nontoxic materials and it seems like the only mats that would work size-wise are the plasticy anti-fatigue mats. Is that what most people are using?

Also would love tips on transitioning to sleeping in the floor bed. We’re currently rocking to sleep and then transferring to her crib in our room, then nursing through the night and eventually cosleeping. It feels like a lot of transitions at once to move to the bed but she’s very much outgrowing the crib. Do most people night wean during this transition too?