ROFLOL as I recall as a newlywed using the satin sheets given us.
I showered, dried, went into the bedroom, jumped on the bed, and slid right off onto the floor on the other side. We got rid of the sheets.
This was more TMI than I usually give, but WHY would she want satin? Stick with a nice cotton. If the boy is old enough to choose his own, let him - its his quilt.