I could do a fireplace option.
For maximum classy feel RainyMood audio + fireplace video + FoDG audio + actual coffee in a dark room with headphones.
You need to add an "Instant Relaxation" button to some corner of the site that embeds a good HD fireplace video on black site background and plays FoDG and RainyMood. Then a some short pop-up that suggests you to use headphones and press F11.