Originally Posted by caspharm
As long as it's the right size, day one is fine. My old guild made quilts for the NICU at the local children's hospital, which were sent home with the babies.
In NICUs they're still not usually used to cover for warmth. They're laid over isolettes to block light and provide decoration. They also do things in NICUs that you shouldn't at home because the babies are monitored 24/7.