Hi Kernow,
The refurbished S7 lounge is nice for relaxing (less so for food/drinks) .There is a rest area on the second floor of the lounge,with dimmed lighting and virtually no noise and a few reclinable chairs and they are great for a short nap. That's a review of this lounge (in russian),but it has some pics.
http://aviablogger.com/2014/12/new-l...-airlines-dme/
I am a regular at DME,but I normally skip everything and head straight to the lounge,but everything in DME is open 24/7,unlike most EU airports.
Regards
Rami