It's 5 a.m. and you've spent the past hour staring at the ceiling.
You climbed into bed around 1 a.m. and fell asleep almost immediately. Then, suddenly it's 2 a.m. and you're wide awake. Your pulse is racing, head thumping.
You try to calmly assess the situation. You tell myself to relax and even manage a laugh as you recall a sensitive friend's advice: "Insomnia? Go to sleep and forget about it."