Bed Mat for Tacoma with Factory Spray On Bedliner?

lots of people do this. my work truck (a Ram 1500 Classic) has a spray in bed liner with a bed mat over that and it’s just fine.

 

I echo get the OEM mat. Heavy rubber and grippy, but easy to remove when you want things to be able to slide around. I just roll it up and strap a bungee around it when not wanted, but it lives in the bed by default. 100% compatible with factory spray in liner. No clue why Toyota claims "not compatible". The others are all more "liners" than mats.

Got mine from Fred Anderson and shipping was free (it's got some weight to it!)

 

I agree with the above. I have the spray in liner and added the OEM mat. It helps keep things from sliding around so much and maybe keeps some road noise down. It also keeps the bedliner from getting nicked up and scratched of course. It’s a fairly cheap added guard. I bought mine from a dealership online when it was on sale and offered free shipping. Much cheaper that way.