A pillow top is an extra layer of padding sewn into the top of the mattress. This results in plusher support zones. In contrast, a tight top is a thin layer of fabric stretched tightly across the top of the mattress. This design gives you a firmer sleeping surface. If you’re still unsure which mattress choice is best for you, consult a sleep expert. Sleep experts take the time to consult multiple retailers and sellers before offering mattress advice. Your online retailer may have article-based advice to guide you in your mattress shopping.