My 8 month old bulldog used to sleep in her crate all night till 7 a... now she wakes up at 4 am and barks like crazy and won't stop! What can I do too get her to sleep all night?

She has you trained, I suspect - she barks and you let her out?

Can you put the crate somewhere where her barking is less annoying and the neighbors can't hear her?

I was told to let my puppy "bark it out." If he barked I let him outside, he came back in, he was crated again.

I have also had dogs whose crates were in my bedroom - they were fine because they knew I was there.