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 .
UK 's prison system wins praise for recycling mattresses . Prison mattresses sent to landfills could fill 30 double-decker buses . UK 's Prison Service sought a `` zero-waste '' solution to tossed mattresses .