Baby quilt patterns? Well, I made up the one I did for new grandson (see below) to co-ordinate with the 'Hodge Podge' range from Mamas & Papas, and am making one up for LittlePal's offspring-to-be (no design spoilers here, just in case! Heh heh...)
The one below wasn't made as a baby quilt, but uses the 'Moon over Mountain' block and another of four triangles put together. With the right colours, it could work as a sleepytime quilt.
You could always stick to an easy structure of squares and strips, or a simple nine patch block, and incorporate different prints and colours with some relevance to the family, depending on what they like. Let's face it, the baby will be too young to appreciate it, so you may as well do something that the parents will like!