
It doesn't make a huge difference in feel, but they are softer than the Purple Hybrid. The Purple 3 has a 3-inch layer of Hyper-Elastic Polymer at the top, while Purple 4 has 4 inches. Really, the only major differences in construction are the top layers. The two Purple Hybrid Premier beds are the top-tier mattress options from the brand.

I think it feels more breathable than your typical mattress cover and compare the feel more to an athletic antisweat undergarment than a soft cotton top. On top is the Purple's "StretchMax" cover, and just like the name implies, it's extra-stretchy.

It's bouncy, squishy, soft and provides most of the Purple's comfort. This is the primary layer that distinguishes it from the other two Purple Hybrid mattresses - each mattress has a different thickness of this layer.

Here's a simple breakdown of the bed's layers so you get an idea of what makes Purple, Purple: The Purple Hybrid is four layers thick and around 11 inches tall. I think it's a tad bit firmer than the Original Purple mattress. The soft squares don't push into your hips and shoulders when you're on your side like your typical firm bed, but my back and spine feel very reinforced above the bed's Hyper-Elastic Polymer layer. The Purple Hybrid 2 simultaneously feels pressure-relieving and supportive, while maintaining a slightly firmer profile I think it's around a medium-firm, or 7 out of 10 on the firmness scale. But if you're open to a mattress that takes pressure off your hips, shoulders and back while simultaneously making you feel weightless, you might be pleased with its benefits. If you're curious about the Purple Hybrid but you aren't willing to explore unconventional ways of bedding, you might want to look elsewhere.

Though, it's also really supportive because of the thick layer of pocketed coils, which I'll explain more below. It's not super noticeable when you're laying down, it just feels buoyant like you're floating on your back or laying on a hammock.
