Our fantastic new collection incorporates individual pocketed spring and open coil spring with High Density memory foam Featuring the next generation in Memory Foam - Blu Cool Memory Foam™. This amazing new Memory foam without the heat! is upholstered in luxurious soft knit fabric which removes body humidity built up during sleep, they work in tandem to give you a perfect nights sleep. All the bases are fully upholstered in the same fabric with twin piping, so one base suits all the mattresses. All bases have twin castors with linking bars. All are no turn Mattresses.