We've given the NICU quilts that are 30"x40" or up to 36"x48" and they have appreciated them all! There are some patterns for fancier ones that have flaps and ties. Those are meant to stay with the isolette. The nurses have been giving the covers we send to the parents when the baby goes home, so we make them just rectangular. Some are scrappy string quilts, some are "warm wishes" scaled down, different 9 patch variations. The smaller size is a good one for wheelchair lap quilts, too, done in "adult" fabrics.