"Pocket Sprung Mattress: Hundreds of pocket sprung contours every part of your body perfectly, give precise support to your body. Besides, pocket sprung can minimize motion transfer. you won't be disturbed or woken up, even if you toss and turn during the night. Spring Mattress Cooling System: Expanded Pocket Inner Space Brings Extra 20% Breathability. The spaces between springs can allow more air flow to ventilate, and improves the whole mattress breathability. Combined with the smooth, breathable cooling Oeko fabric, Novilla mattresses bid farewell to sweaty nights. Low Cost Excellent Value Mattress: Suitable for people who weight less than 70kg, Novilla Medium Soft spring mattress can be used in students dormitory, rented housing, temporary used for guest room, boys and girls room, bunk beds, spare rooms, lofts, flats, or as a low-cost, high-value mattress option. Mattress with Healthy Material: The Novilla mattresses have passed strict Oeko-Tex (see details in the sustainability features below) and CertiPUR-US (see details through searching ""Novilla"" in the CertiPUR website) certifications Novilla Support: Shipped to your door vacuum rolled in a box, please allow over 72 hours for the mattress to fully expand after unsealing it. This mattress comes with a 100 night trial for you to get used to your new mattress. With confidence in mattress quality, Novilla also offers a 10 year support."