I discovered this brand on Amazon and it. is. adorable!
Olli Ella does really sweet bedding and furniture design, and a lot of it consists of cute unisex patterns. I had a really hard time looking for clothes and nursery decorations before I knew the sex of my baby; I can only imagine how tough it is for mothers who don't find out at their 20 week scan! This brand is perfect if you're waiting to be surprised.
You can buy Olli Ella from their website but they also have a lot of merchandise on Amazon at nearly half the price.