I got to the lounge this morning at 7am, and I was offered a glass of champagne.
I asked what the special occasion was, and was told that they will be doing it once a month.
I doubt it will catch on, as no one took them up on the offer in the 30 minutes or so I was there. It's generally people on business at that time.
This was the Regents Park Marriott by the way.