Here’s the translation:
“Horrible rooms, the sheets were full of blood, the blanket was covered in something sticky, terrible threads, and I had asked for a non-smoking room. I couldn’t sleep because of the smell, the bathrooms were very dirty, a very bad experience.”
¿Quieres que lo adapte con un tono más formal, como para una queja en reseña u hotel, o lo dejas así directo?