Eventually, Ron yawned, rolling over in bed.
"Mrf..." he mumbled. "Not time to get up yet..."
Harry waited, wings slightly furling and unfurling, and then Ron noticed.
"Bloody hell!" he yelped, jumping to his feet. "Aguamenti!"
A spray of water doused his merrily burning bed, and the water didn't do anything to the bright blue flames.
Harry tried not to giggle.
"...prat," Ron muttered, shaking his head, and dispelled Harry's bluebell flames with a muttered Finite. "How long ago did you do that?"
"Twenty minutes," Harry admitted.
"Yeah, okay, that's pretty funny," Ron allowed, tapping his model griffin to wake it up. "What's the time… blimey, I slept in."
"I thought that would wake you up pretty quickly," Harry replied, inspecting Ron's presents to make sure none of them had got wet. "Then I just sort of… waited, because it was funnier to watch."
"I'd probably have done the same thing," Ron admitted. "...I probably will do the same thing. Possibly to Fred and George."