ALice that is me. I turn the light off at 10pm. If I am going to acttually 'get sleep', that still entails waking up at midnight, 2am, 4am. Every 2 hours. Sometimes I can go back to sleep, other times I can't.
Sometimes I will be wide awake between 2am-430, then fall asleep until 530-6am. But I never, ever 'sleep all night' anymore and haven't for years. I've been awake now since 2am...its 235pm.