No havent heard of her. I'm the only sleep expert I know LMAO And my advice is do whatever works whenever it works LOL.

Don't worry about sleep & development. Baby's that wake are often very alert and take in a lot of what is around them. My babies didn't/don't sleep through, but it's completely normal and nothing to worry about. It certainly has its challenging moments.. but if a person says their babies sleep through all the time... they are most likely lying or stretching the truth - a lot. All babies go through stages, developmental, teething, separation anxiety, growth spurts etc etc etc. I think i'd be more worried if my babies were sleeping through all that! It's reassuring to know that my babies are going through all these normal stages, and that they know I'm here for them.

I'm more frightened of my babies learning that mummy ignores them than I am of having a 6 yr old waking at night. JMO