Stylish Silver 'Sleep In Progress' Do Not Disturb Door Hanger Sign. Ideal for hospitals, hotels, students, doctors, nurses, night shift, tired parents! ENGRAVED - with text and sleeping icon on front, plain black on reverse. PERFECT SIZE - 145 mm tall x 75 mm wide DURABLE - made from 3mm brushed metallic effect acrylic STYLISH - Impress clients, staff and colleagues with this stylish silver 'Sleep In Progress' Do Not Disturb Door Hanger Sign Manufactured in the United Kingdom. We have a wide range of Do Not Disturb Signs for work use, in the home or as novelty gifts. Please see all of our other listings.