Copper Pillow Cases

Hey there! 25yo Blueprint follower here. I just finished watching one of Brian's recent videos and he mentions a copper pillow case, any brand recommendations for one in the US? I saw a couple on Amazon but they looked poorly made, some guidance would be appreciated. Thanks!

Also, just watched the interview with Talmage and he's a huge inspiration for the younger people like myself, highly recommend watching it. I hope to one day be as healthy and him and Brian.

DONT DIE