I know that early pregnancy is known for being tired and sleeping all the time, but with DD, I was opposite. From 7 weeks until I had her at 41+6, I suffered badly with insomnia. I'd wake about 10 times a night, some nights never falling back asleep.
It was so bad that my midwife allowed tylenol pm (which I took on work nights only - never on the weekends or days off and stopped once I started maternity leave). Even with the tylenol pm, I was still waking 5 times a night, but it was much better than 10.
I know it's not much help, but insomnia is also possible instead of the "always sleeping" symptoms. I'm opposite this time - I sleep better at night and still have to nap throughout the day.