Sleep, like peace and quiet can be quite elusive, and on spelling, far be it for me, a known sloppy speller,  to cast the first nasturtium, and who is to say that a full stop should not take a nap mid-sentence, and given  that  the link between  upper case and en-titlement is well established, and there being not doubt that at any given moment people right across the planet packing in the zeds, and the endearing slight wobble that offsets the sure and decisive lettering of this directive, of  all of this it must be said, albeit quietly so as not to disturb anyone dozing, that this notice is a true piece of vernacular art. Quite.