I fly from Heathrow often in early hours but travel a good distance so like others stay in the passenger streets through the night. Once again, it is a battle to use the Women's Bathroom (Toilet). The night cleaner closes off the Men's Toilet and leaves the Women's open. So the construction workers all dirty up the Women's Toilet until one decides to finally go into the Men's side. It is not safe. This is the one located by Cafe' Nero and Boots. Also, the airport stays so very cold. It is such a hard and unpleasant experience. Then you fight through Security. Tons of employees, half not working.