We all have times when we're feeling stressed and it's hard to fall asleep. Here are some suggestions for short-term help when frustration is setting in.How to help your brain switch off so you can get to sleepIt’s hard to leave your day behind and get to sleep sometimes, especially if you’re feeling stressed. Whether it’s revising for exams, planning to go on holiday or worrying about someone close to you, there are likely to be times when it’s hard to switch off. And, as lo