You can avoid all of this hassle with a stay at an airport ... Distance from terminal: 5 minutes Convenience is key at this Sofitel, the only on-site hotel at Heathrow Terminal 5.

London Heathrow’s terminal ... off option at its mid-stay car park. The area is free of charge for up to 15 minutes and is a short 10-minute walk away from the terminal or a five-minute shuttle ...