4 hour layover in Heathrow

Don't laugh, but sitting on the west side of the American Airlines Eagle plane on the way to LA on a beautiful sunny day flying over the Pacific was really the most amazing launch to our trip. Flight to London felt quick, between the meals, the 4 hour sleep and 'My Week with Marilyn'. You'd think the bad news would be our 4 hour layover in Heathrow. However, with British Airways business lounge access the layover is really quite something. A wonderfully peaceful area, the options for food and fun are really quite astounding. We stayed on the second floor, finding a comfy spot in the lounge area where we proceeded to sample the chicken tangine w/ couscous, the vegetarian curry w/ rice, the leek soup, a bloody mary, the sweet and spicy crisps, the steak flavored crisps, the yadda-yadda crisps, the cheeses, the coconut-orange shortbread, a latte machiatto, a tasting of french bordeaux wines....I am wondering whether we can just spend the night. But of course not -there must be more culinary and other adventures awaiting us outside of the airport See you in Roma. Ciao!