Some readers will simply want to see their mattress in person before buying it. That's a perfectly smart move; outside of a home, a car, or a degree, a mattress is one of the biggest single purchases most of us make in our lives.
The advantage of box mattresses, however, is that they're cheap and convenient. Because it's such a competitive market, there are mattress sales almost constantly and the big manufacturers are always dropping their prices to try and get the better of each other. Box mattresses can be hundreds of dollars cheaper and be delivered straight to your door. If you buy directly from the retailer too, you can benefit from perks such as sleep trials, hassle-free returns, and warranties. It's basically better sleep, or your money back.