You talk in your sleep.
Not any more but I used to until my late teens.
You walk in your sleep.
Your SO can fall asleep easily.
Your SO sleeps on his back but you can't.
Your SO snores.
"Success is falling nine times and getting up ten." - Jon Bon Jovi
Your SO sleeps closer to the bedroom door.
Your SO often falls asleep watching television.
You will forgive me if I close down for the evening?