The toddler bed that my granddaughter used is the same size as the crib. In fact, it was a crib bought at IKEA and you take one of the side rails off and it it a toddler bed. Because they are having another baby, they bought her a twin bed. I made the quilts for the crib and toddler bed about 45 X 60. I would either do the 3" border across the top and the bottom. How about using some of the fabrics to cut out heart shapes, and space those along the borders? That might be a fun idea. I need to get started on the twin size quilt and a crib size quilt for the baby.