The evidence: A polka dot comforter.
Rihanna posted a photo on Instagram of herself peeking out from underneath a polka dot duvet or comforter.
"Good morning! Still haven't slept lol #hello2013," she wrote.
Chris Brown posted a photo of his foot next to a polka dot bed cover that seemed to be covering someone.
His message: "Mornings."
(Copyright © 2013 USA TODAY)