You don’t want to spend a bunch of money on a nice mattress, only to instantly ruin it with an untimely wine spill while you watch Sabrina in bed, or even slowly make it gross with your own sweat and grime. No, a mattress protector is a must, and this breathable, dimpled cover from eLux is 20% off for our readers with promo code EKINJA20. That code should work on every size, and it’ll bring the queen model down to $21.