imagine kakashi slowly getting used to have someone else in his bed, and iruka being patient with kakashi taking hours to fall asleep, only to jerk awake less than an hour after that because his body is conditioned to respond like this to intrusion of personal space. imagine iruka going back to his own apartment at ungodly hours because kakashi almost attacked him, and sentimentalism wouldn’t keep him safe from a former ANBU’s learned survival instincts. imagine them taking it slow, rotating nights between the couch and the bed, and iruka keeping his chakra signature unconcealed at all times so kakashi will grow used to his presence. imagine months and months of them getting used to each other, being understanding of each other, and finally feeling safe to hold each other in their sleep, finding it worth all the trouble when they get to wake up tangled together in the morning.