https://www.amazon.com/California-Design-Den-Cotton-Sheets/dp/B0769YYMFS?ref_=ast_sto_dp&th=1

they wash great, get softer as you clean them, but they are a little wrinkly in the 600TC not sure if the 400TC will be as wrinkly. Body oil stains are hard to get out of Silk or Silk derivative materials. But you can try a cup of vinegar with no detergent to get them out.