It usually takes me up to two hours before I fall asleep, and I am a light sleeper - easily woken. Age 9/10 I had a period where I struggled with sleep, but this resolved itself. As a teenager, I began sleeping normally again on most days, apart from when I was extra stressed due to exams. However, in the last couple of years I have never seemed to fall asleep easily, and am often quite tired. This could be put down to anxiety, but my mind cannot switch off at all easily.