If you're looking for a thin mattress protector that is just there to protect your mattress, then
Purple is the way to go.
If you're looking for a straightforward mattress protector that gets the job done, then Purple is for you. Purple says its mattress protector is "made to survive a Sasquatch," and while I have no way of verifying this claim, I can say that the protector certainly survived me. That may not be a particularly high bar to set, but hey, it's all you really need.
Made from a unique stretchable material that is quiet and breathable, the Purple protector doesn't promise any heat-wicking properties or healing capabilities, but it does keep your mattress away from liquid, dirt, grime, and anything in between. The protector also formed well to my mattress.
One cool thing to note: The protector is made of the same material on all five sides, which means that your mattress is quite literally fully protected (except on the bottom, but good luck if you manage to dirty that side).
Rather than claiming to be waterproof, the Purple protector promises water resistance, which is still more than sufficient. One satisfied buyer said that she purchased the protector for her little brother who often has nighttime accidents. "Up until now, he had to sleep on an uncomfortable waterproof mattress cover," she noted. "Now with the Purple, he gets more sleep because he gets to enjoy his mattress."
Another buyer said simply, "I mean, it's a mattress protector. That being said, it doesn't feel like it is there at all." With the Purple protector, you won't have to worry about any noisy, crunching sounds if you're a rather restless sleeper.
More than 2,500 buyers have given the Purple mattress protector a 4.5-star review, and with that sort of crowdsourced appreciation, you can bet that this is a reliable protector.
Pros: Thin but still comfortable and protective, relatively easy to care for, stretchable material is unlike others
Cons: May feel plasticky due to the thin nature of the protector