Yeah right!! So I turned up, eventually, after getting totally lost in Copenhagen, at 630pm and beginning to become dusk, at my sleepinheaven hostel.  Only to be told I was too old to stay there. Cheers guys!! Heaven is only for the young.  Apparently the hostel was 18 - 35.  Now, there was no hesitation in the guy behind the counter.. didnt question my age.  He gave me a refund and an address and directions to an OLDER persons hostel about 15 minutes walk away.
12 room dorm and only me and a guy with an Aussie accent.
Slept fitfully.  Just like and old person.
Headache and tired. Just like an old person.
But.  Hey!!  It's a new morning now, the sun is shining. And there is a two and a half hour boat trip waiting for me around the canals... if only I can find Nyhavn boat port... its not far according to my map.
But I did not pack any Phylossan (fortifies the over forties). Ho hum.