UK 's prison system received praise for recycling mattresses . Prison mattresses sent to prison could contain 30 double - deck ##ers . Discarded mattresses pile up alongside trash in London in January of this year . UK 's Prison Service sought a ` ` zero - waste '' approach to tossed mattresses .
UK 's prison system received praise for recycling mattresses . Prison mattresses sent to prison could contain 30 double - deck ##ers . UK 's Prison Service sought a ` ` zero - waste '' approach to tossed mattresses .