After coming in tired from driving, we showered and went to bed. Wasn't until the next morning, we realized the linen hadn't been changed on the bed. Tbere was make up all over the bottom of one of the pillows and on the sheet. It really looked like blood. The staff accommodated by quickly changing the linen and giving us a discount on the stay. When I went online to add my stay, I was told it was ineligible because I booked it through a third party. But I paid Hilton not the third party. I will stick with Marriott going forward. Very unprofessional and a kick in the side after us sleeping on dirty linen.