A Spanish company has created a hi-tech mattress intended to tell the buyer whether their partner is being unfaithful in the conjugal bed when left alone at home.

The “Smarttress” looks like any other mattress, but the manufacturer says that its concealed sensors detect suspicious movements in the bed. If the pressure matches algorithms based on research carried out on sexual motions, the worried partner will receive a warning on his or her mobile phone.

“If your partner isn’t faithful, then at least your mattress will be,” is the slogan being used by the bed maker Durmet.