call that cold?

I am still getting used to the heat, each day is mostly over 80 degrees (call it
late 20s C).  And as we are in the northern hemisphere it is technically winter too.  Obviously it cools down over night, but its still warm.  I still sleep on top of the bed (wearing my birthday suit) and have the fan on (a little luxury I know, and it often goes off in the early hours if we don’t have enough battery power stored). 

The guys here tell me they use a blanket, and PJs, socks sometimes and often a hoody.  What? 
I know that there is no sympathy at the moment with temperatures around freezing in the UK.   My mate sent me this photo by whatsapp the other morning with a snowman emoji, he had dug out
his ‘thick’ hoody.  

Seriously, 17 degrees in the small hours is still properly comfortable.