Rather off topic so apologies for this but seeing the picture above brought back memories of when I had to spend several hours in a paid entry lounge at Sharjah airport (4am to 9 am) and lay down on a sofa in the almost deserted lounge to catch some zzz's and was immediately approached and told that there was no sleeping allowed. I asked would it be OK to sleep while sitting upright and was told that I could not do that either. Slow blinkers be aware ...