Generally, yes. We do recommend our users to get themselves a fitting cover for their mattress topper as it would greatly improve the comfort of your beddings. First of all, you’ll have something to protect your toppers from spills and stains. And secondly, the cover will also prevent dead skins, sweats, and allergens from getting inside your mattress, thus, allowing them to last longer without having dust mites and odors. Plus, a simple layer of cover with high-quality material will greatly enhance your comfort while sleeping, with improved softness and breathability. And most importantly, you won’t have to waste your time on cleaning the large mattress toppers. Instead, all it takes is a simple wash, along with your other laundry every once in a while.