if she/he/other (so confusing 🥲) happens to be in a bad mood you could say "well someone woke on the wrong side of the bed, or are you just upset you're not cuddling with me in my bed~?" or don't say it, your choice.
another option is "well someone woke on the wrong side of the bed, or are you just upset you didn't wake up in my bed~?" but I thought that wouldn't be the best if you're in school or something.