And T5 closes at night, apart from a landside area by Costa cofee in arrivals, with deliberately uncomfortable conditions to dissuade the homeless. It's just a case of what we would advise someone to do if caught out by the shifting sands of requirements and airline schedules. I would still advocate someone leaves the UK overnight, to anywhere in Europe that would accept that Red List visitor without quarantine, and then return to London the next day to complete the connection. That is the safest thing to advise, particularly if and when managed isolation hotels become available again (people are being shipped off to Milton Keynes at the moment).