The Fibre Star mattress with bonnel spring inside is more comfortable and back supportive that give you a restful and undisturbed night's sleep. Super Single Size 3.5'x78x9' Anti-Odor In Endless Cycle Eliminate Cigarette Smell Eliminate Harmful Particles Anti-Dust Mites Sanitized Environmental Friendly Good support to spinal Well Ventilated Turn Free Grade A 10 years warranty