This isn’t really a yes/no question because bed in a box mattresses aren’t exactly a type of mattress. Instead, it’s a method to sell a variety of mattresses to customers across the country. Bed in a box mattresses are compressed to fit in a box, instead of taking up space in a delivery vehicle. Some bed in a box mattresses are well-made and should provide you with a good night’s rest for a decade or more. Others might contain flimsy materials that will give out within a few short years. A quality bed in a box mattress should always come with a sleep trial. That way, you can try it out and make sure it’s the right bed for you.