I got these Purity Home - Purity Home 400TC Percale MiG Cotton Sheet Set, Twin, White delivered a couple of weeks ago and was excited to try them out. I washed them and dried them and put them on our guest bed. Me and my husband work different shifts so to avoid disturbing each others sleep the guest bed is used during our work schedule, but anyway they feel amazing. These sheets are so comfortable that I want a pair but my king sized bed. They stay in place and they do not slip off the mattress. Love them!