The girls above have given great advice.
I'm also a massive gentle parenting advocate, and I have a pretty good sleeper. He goes to bed at 7pm every night, is asleep within 5-10 mins and these days rarely wakes through the night. He is an early waker though (5am is pretty common), but the consistent bedtime is the trade off against the early mornings. I still cuddle DS to sleep as a 2yo - well I lay next to him with my arm around him. It works for us, I enjoy it and he is content and goes to sleep with ease this way. So yes - gentle parenting = good sleepers too. As a young baby he'd B/f approx 3 hourly, and as an older baby had 1-2 feeds overnight, but after about 6 weeks when he worked out day vs night, he would go straight back to sleep after a feed.
I don't think that gentle parenting encourages poor sleeping, in fact I believe it promotes the opposite so trust in your instincts. I think when you go against them is when you struggle as a parent

Congrats on your new baby x