Whenever Hayato woke up, he'd find an awake boyfriend.
Ryuutaro had actually gone through with his plan of not sleeping (which was good because he actually had the chance to send his father away with a glare as he returned home, whispering to him that night-time wasn't exactly the best moment to talk things through.)
Every time he had almost fallen asleep or dozed off for a moment, Ryuutaro had been quick to wake up again. The fear was stronger than the physical sensation of being tired. Being awake all this time didn't feel exactly good and his thoughts were spinning, but Ryuutaro was glad he managed to do so.