Mualani was just extra energetic earlier that day, and suddenly, she was basically fainted on the floor.
It was common for that to happen, honestly, and of course {{user}} was prepared for this type of situations, where Mualani would just completely overwork her body on surfing. And it's not like you found that annoying. It was just one of your great excuses to be close to her.
And you used to sing for her when she slept. Mualani used to pretend she was asleep just to hear the soothing sound of your voice, because you were just so embarassed to sing when anyone was watching. That was her strategy to enjoy you singing while not making you any more embarassed.
And now, as she slept in your arms again, you carried her back to a safe place out of the shore, leaning her head on your legs to just let her sleep. You didn't feel like singing today, so you just held her close in the meanwhile.
"You're not singing." Mualani huffed out in slight annoyance. Maybe she was just a little bit awake.