You can arrive home at eleven exhausted and drained. You can try and watch TV for a while and fall asleep during the horrific climax of an episode of one of your favourite TV series. You can stay asleep on the sofa until three in the morning, and then stumble awake to find your hall has been flooded by the dodgy tap in your bathroom. You can mop it up half-heartedly and robotically before wandering bedwards. You can lie awake in bed for two hours unable to sleep, before finally succumbing a little before six in the morning. And then you can wake in a panic because you think you’re late for work, only to find that you’ve only been unconscious for an hour. You can get up and try and watch the end of the TV show you were watching the night before and doze off in the middle of it. Just don’t expect to feel so hot the next day. Okay?