To learn what kind of mattress works best in bunk beds specifically, we spoke with experts and scoured the market, researching every viable option. Below, find the seven best mattresses for bunk beds that will satisfy any budget, comfort, and material preference. But first, what we learned about how to choose the best bunk bed mattress. Sleep coach and nutritionist Annika Carroll says your first line of business should be giving thought to the mattress size. Most bed bunk frames are best supported by twin, twin XL, or full-sized mattresses, so bear in mind that you only have a few options. While these sizes are great for younger sleepers (and those looking to save space), it can be limiting for larger sleepers or people who want more room. “Bunk bed mattresses are generally smaller in size as most bunk beds fit twin-sized mattresses,” Carroll confirms. “That is the only limitation you might have when it comes to selection.” Materials: Just like you would with any mattress, Carroll advises considering the materials used in your mattress. “I recommend looking for certified organic mattresses to avoid toxins (or chemicals) being used in manufacturing them. These will off-gas or even get absorbed by the skin during sleep.” Weight and thickness: Finally, take account of mattress weight and thickness, especially since the top bunk mattress should be lightweight and easy to carry. “Changing the top bed mattress can be a bit challenging if the mattress is very thick and thus heavy,” Carroll says. “What’s more is that bunk beds also have weight restrictions, so make sure the mattress will accommodate this as thicker mattresses are significantly heavier.” Edge support: Although the frame should have rails regardless, edge support is especially important for that top bunk. Typically, beds made with coils (innerspring and hybrid models) offer the best edge support, and latex is a good option, too. All Helix products are made with CertiPUR-US® certified foams and sustainable latex, and each Helix Kids mattress undergoes additional lead and phthalate testing to avoid any exposure to harmful chemicals. The mattress ships in a box and is delivered to your doorstep with free, no-contact delivery. To fully eliminate any odors from your mattress, the brand recommends allowing the mattress to breathe and come to shape for a few hours before sleeping on it. Reviewers love the flippable design, and the fact that this is a thinner mattress (8 inches), noting that it’s a great pick for the top bunk. Brooklyn Bedding does not offer white glove set up service (or old mattress removal) at this time, but reviews do suggest that mattress set up is a cinch. The brand does recommend giving your mattress enough time (3 to 5 hours) to expand before sleeping on it. On the fence? Take it from this five-star reviewing parent: “We purchased the short full for custom bunk beds and wanted something that was comfortable for adults. This mattress is so soft and cozy! Very impressed." The mattress is lightweight and fits bunk beds easily. With a generous 365 night trial and lifetime warranty, you’ll have plenty of time to test it out before making a final decision. The Nectar Memory Foam Mattress is compressed into a box and is shipped to your doorstep via FedEx. Once it arrives, the brand recommends unboxing allowing your mattress to fully inflate for a total of 24 to 72 hours. Providing the right amount of thickness and comfort, reviewers say this mattress is a must for bunked sleepers. “My boys have these mattresses in their bunk beds. They said it’s the best sleep they have ever gotten. Very thick and comfortable,” touts one five-star reviewer. Above all, this mattress is comfortable and supportive. It’s made from GOLS certified organic latex and individually pocketed recycled steel coils, with a breathable organic cotton and wool cover. The latex is naturally cooling, and the coils provide substantial motion control that’s great for kids who tend to move around a lot in their sleep. Keep in mind, the medium firmness level may be too firm for those who prefer a super cushioned feel. However, it’s particularly beneficial for back or stomach sleepers, who need a little extra support. The mattress is shipped to your doorstep for free via FedEx. White glove delivery and mattress removal are available for an added cost, depending on your location. There should be no off-gassing required post-setup, thanks to the non-toxic and organic materials. It’s best to let your mattress expand for several hours before sleeping on it. This bed arrives compressed in a box, and may require some off-gassing time to ensure odors are eliminated. However, reviewers really like that it ships quickly, is easy to box, and that it comes to shape quickly. Shoppers love the customization options, too. Mattresses can be designed to fit your unique sizing needs. And yes, this mattress is the most expensive on this list. However, because of its high-quality materials, size range, and customization option, it’s worth the extra splurge. Besides, bedding is an investment buy, after all! The Tuft & Needle Original Mattress is vacuum-sealed in a box with no excess packaging. Customers have the option for professional set-up, which includes old mattress haul away. If you prefer to set up your Tuft & Needle Mattress on your own, reviewers it’s a fairly easy process from start to finish. Just be sure to give it at least 48 to 72 hours to ensure your mattress fully expands. Parents appreciate that this mattress is the perfect fit for any bunk bed frame. “We love Tuft & Needle mattresses and now have six, one king, two queens and three fulls for bunk beds, guest rooms and our master bed rooms - comfortable cozy and great nights of sleep,” one customer writes. It’s also dual-sided and can support young sleepers through their growing years. One side is quilted, and the other has a smooth, waterproof surface. Depending on your child’s age and preference, simply flip the mattress over. At the core, an open innerspring design provides comfort, airflow, and temperature-regulation. Mattress setup services are available, depending on your location. Though, if you prefer to set this mattress on your own, reviewers assure that the process is easy: simply take your mattress out of the box, remove the plastic cover, and let it expand into shape for a few hours. Since this mattress successfully marries sustainability with support, reviewers say it’s a great bunk bed-friendly mattress overall. “The quality of the mattress is better than I expected for a top bunk mattress that needs to be thin. My son says that it is very comfortable,” one parent writes. While most reviewers appreciate the waterproof protection this mattress provides, others give a reminder that the waterproof protection doesn’t extend to both mattress sides. To properly safe-guard your mattress, it may be helpful to add a waterproof mattress cover on top for an extra layer of protection.