When I brought my newborn baby home, he could not sleep long in the day (slept around 15 min and would wake up). I never thought of letting him sleep in hammock as I was afraid it might be a bad habit to kick off & my older son has never slept hammock before.
But after 1 month, I have no choice but to try hammock as he constantly woke up in the day & exhausting a lot of my time. He could sleep very well in the hammock in the day & slept in his own baby cot in the night. But then I was worried how to kick off his habit of sleeping in hammock if he grows big enough.
To my surprise, he automatically refused to sleep in the hammock when he was 6 months old. He just wanted me to put him in his cot to sleep after drinking his milk. He will sleep by himself !!So having used the hammock is not a bad thing, but a pleasant tool.
An additional advice to mothers-Don't worry too much, the bridge will straighten by itself.
