If your flight departs late, Heathrow lounges remain a comfortable refuge, with evening snacks, dimmed lighting

https://travisigkt970.cavandoragh.org/dragonpass-at-heathrow-complete-access-guide-by-terminal

If your flight departs late, Heathrow lounges remain a comfortable refuge, with evening snacks, dimmed lighting, and quieter crowds as the night progresses.