BedStory is a sleeping expert with over 35 years of experience in the bedding manufacturing industry. We always strive to provide global customers with luxurious comfort and help them sleep better. Bed-in-a-box individually wrapped coils: no movement transmission due to the individual pocketed coils. No worry to wake up your partner when turning over or getting up at night. 2 rows of strength springs & foam encased: two outer rows of hardened springs make your bed more durable, no worry about collapse when sitting at the bedside. Foam encased around makes your bed more advanced and beautiful. Double 3.3 cm convoluted foam layer: brings you a more cooling feel when sleeping on a BedStory 12-inch luxury black encased coil mattress due to the 2 layers of 3.10 cm convoluted foam. Memory foam mattresses layer material also helps your bed be far away from bacteria due to ventilation.