Ralph Lauren Jogger Sleep Pant in Black. Dark and cold nights mean only one thing; cosy nights in on the sofa! For that you need a comfy fit to kick back in, and these jogger sleep pants are the perfect pick! A cotton blend woven into a waffle knit offers stretch for unrestricted lounging, while a draw-string waist and cuffed legs create a slim, custom fit. A golden yellow embroidered pony motif sits atop one of the two side pockets, branding the piece as Ralph Lauren.