. If you are disabled or have limited upper body strength, do not under any circumstance buy their mattress. Though market as a no turn mattress, it will develop a sag after 200 days (another clever marketing piece of disinformation). This is a known fault in this substandard product. Emma then recommends turning every month for the first 6 months then every 3 months thereafter. Unless you have the strength or help to do this it is not suitable for disabled people. Additionally they will only replace the mattress like-for-like so never ending cycle of faulty products not fit for use.