Sleep?

I have a major sleeping problem. It makes me wonder if my sleeping pills work any more. I have had a very hard time falling asleep every night this week except last night. But I think by last night I was so tired I feel asleep because I was so exhausted. Last week I couldn't fall asleep until 3 am, this week, 7 am or later, which is really the next day. Then I sleep till 3 pm, which seems like I am wasting my whole day. But I can't not sleep, I'd be a zombie. I have even tried taking double the sleeping pill, extra pain meds (they make me tired). Not really anything stressing on my mind, I just never feel tired. I hope it's just not something that's going to continue.