The Twin size Sealy Conform Essentials Upbeat Firm is a great choice if you're a single sleeper looking to keep your cost as low as possible while still enjoying the benefits of sleeping on memory foam. This mattress has a very firm Comfort Scale score of 2.5, which is best for back or stomach sleepers who are used to exceptionally firm mattresses.The Upbeat has an UltraStretch ComfortLoft Cover. Featuring a thin stretch knit design, this cover puts almost no barrier between you and the comfort layer, which allows the layer of Sealy ComfortSense Gel Memory Foam to closely contour to your body and provide pressure relief to help reduce tossing and turning. This comfort material is one of the most durable foams used by Sealy, and it is CertiPUR-US Certified to ensure high quality standards. The SealySupport Gel Base Foam supplies solid support to the lower back while working to reduce motion transfer. If you're sleeping on one side and movement takes place on the other, you will remain relatively undisturbed thanks to this foam. The foam is also adjustable base friendly.All in all, while the Twin size Sealy Conform Essentials Upbeat Firm may not have all the bells and whistles found in the top-tier models, it's still well-made and designed to provide well over a decade of firm support and comfort. Product info furnished by Carolina Rustica.