💨【Breathable & High-Density】 With breathable knitted fabric cover and high-density wave foam, Povirt foam mattress stabilizes the temperature for sleep. It optimizes the effect of temperature regulation, heat dissipation and pressure relief and further controls temperature accumulation that disrupts a good night's sleep. The comfortable wave foam layer stays you cool all night long. 🌫【Dual-Edge Support System】 This twin mattress is designed with an unique 7-ZONE. Springs work independently from each other, effectively absorb sound and vibration, and evenly distribute body weight. It provides excellent support and comfort for your head, shoulder, waist, buttocks and legs. A dual-edge system enforces the firmness of innerspring edge and protect the bed mattress. You won't roll off when sit on the edge of the innerspring mattress. 💁【Fit for All Sleepers】 The fireproof layer of the mattress is made of flame-retardant non-woven fabric, which does NOT contain any fiberglass. This twin size mattress is suitable for various sleeping positions such as side sleeper, back sleeper or stomach sleeper. Enjoy a deep sleep on it and start an energetic morning! 📦【Twin Mattress In A Box】 This hybrid mattress is vacuum compressed, rolled into a compact box, and finally delivered to your door, aiming to make it easier for you to handle. It fits all frames such as box springs, flooring, slatted bases, flat platforms. 👍【Risk-Free Buying】 Each Povirt mattress has a 100-night trial and a 10-year limited warranty. For a better sleeping experience, please allow the mattress to sit in a ventilated area to dissipate the slight odor from the packaging and wait at least 72 hours for it to fully expand. If there are any problems, please do not hesitate to contact us.