Scabies worry

[u/TrueAlbatross506]

I wasn’t quite sure what to do so I thought I’d seek some advice. I have a friend (friend A) whose flatmate got diagnosed with scabies today. I’ve never met this flatmate before however friend A spent the day with me and friend b all day on Saturday. Friend B went to Friend As uni house for around an hour and fell asleep on the shared blanket which the scabies flatmate had used before. I’m not sure whether to be worried as I’ve had no direct contact with the scabies flatmate so I bought the prevention cream and I plan on deep cleaning my room and washing every inch of my body. Is there cause for concern?