There is a wide range of pricing in crib mattresses, as in most things. There are mattresses that cost less than $50 and others that can cost several $100s of dollars. It depends on what you are looking for. If you are on a budget, you can find a great mattress that will still last for a long time. If materials are your main focus, you can find a high-end mattress made of the material you desire. Organically-made mattresses will usually cost more than other materials so take that into consideration. There are also many middle-of-the-road mattresses to choose from. So look at your budget, consider that the mattress will only be used for a maximum of 4-5 years, think about what materials, if any, you desire in a mattress, and then shop away!