I ordered the duvet cover, flat sheet and pillowcases in the same series and the same color. I followed the advice shown on the packaging, namely wash at 30 degrees before the first use ... So I washed all together. As a result, no two things in the same color ... The sheet turns pink gray, the duvet cover was thinning, and pillowcases remained dark gray ... So it's ugly! I recommend you to choose another collection!