I am happy to say he has livened up more and more over the last hour!!
Jasper is not a fan of the cold on a regular day but a day that's -28 with a -38 windchill is beyond cold for him!! The fact that when I announced it was bed time he sprung up and ran for the patio door gave me hope. They all love bedtime so much that they will begin to get antsy later in the evenings when they know its bedtime, they go into their crates and get treats after their nightly business trip
I knew that would be a test because if he didn't get up and run for the door something was seriously wrong.
My fingers are crossed that he wakes up with the same go get 'em attitude!!
Thank you both very much for your concern and advice!