Is it normal i have insomnia and can only sleep in church

Is religious music being played when you sleep there? Try getting religious music, like, Gregorian or Orthodox chants, and play them at bedtime. I used to play Gregorian chants at bedtime, and they really helped me to relax enough so that I could fall asleep.

Church to you may be a place of comfort and security. To help you sleep at home, maybe have a bible in your bedroom and maybe some things to make you think you're in a church.

I don't suffer from insomnia and I have only been to church twice in my life - church makes me fall asleep too.
I seriously think you should buy yourself a pastor (not of muppets though) and make him speak to you at night when you are getting in bed.