Description Our Hybrid Pocket Spring Mattress provides even weight distribution and helps to make your night's sleep more restful with no roll-together.Hybrid Mattress use high density foam material, which is breathable, soft, comfortable, harmless to the skin and cares for the spine.The high-quality knitted fabric has good air permeability, allowing the skin to breathe smoothly and efficiently dehumidify.The Mattress's FIRMNESS GUIDE offers such as EXTRA PLUSH, PLUSH, MEDIUM, FIRM, and EXTRA FIRM. However, our mattress features a firmness level of MEDIUM, JUST THE RIGHT FIRMNESS Soft But Not Mushy, suitable for stomach sleepers, back sleepers and side sleepers.Mattress is comfortable and safe. It's breathable, hypo-allergenic, providing a comfortable experience. -Mattress Construction for Perfect Comfort: A- Breathable Knitted CoverB- Anti-fire Foam LayerC- Memory Foam LayerD- Ventilated Foam LayerE- Comfortable Foam LayerF- lsolation Spring PadG- Individual Pocket SpringH- High Density Base Specification-Firmness: Medium Firm-Material: Knitted fabric / Non-woven fabric / Pocket spring / High density foam-Tips:Please pay attention to our size before purchase.-Mattress Thickness: 10 Inch/12 Inch/14 Inch-Mattress Dimension: Twin: 75"L x 39"WFull: 75"L x 54"WQueen: 80"L x 60"WKing: 80"L x 76"W Package Includes-Mattress x 1