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Exactly one year ago today, a certain formerly-feral kitty felt brave enough to explore our master bedroom for the first time.
What he found there blew his little street kitty mind.
That's right: today is the first anniversary of Napoleon discovering duvets exist.
By this point, he'd been stuck in the house with us for a few weeks. We'd captured him while he was sick, and once he was stronger he'd then been sent off for his jabs and to be snipped.
He had discovered scritches by this point, but was still unsure about this 'coming indoors' thing.
Then... duvets.
Imagine spending the first year of your life living on the street, scrounging for food, sleeping with one eye open, with the softest, warmest thing you've ever sat on being some straw someone left outside in a kennel for you.
Then discovering duvets exist.
And of course the discovery of duvets meant, shortly afterwards, he decided to try duvet hugs.
Which was basically the point at which (unbeknownst to him) we decided that if he came back post-release then he could stay forever.
And when we did release him a month or so later, once his stitches had healed and the worst of winter had passed, he disappeared for a few hours. Then strolled right back in, came straight upstairs and... ...well. it was clear what was a key factor in his decision-making. 
So yes. Happy Duvet Day, for all who celebrate it.
Napoleon, of course, is already doing so.
@garius If I had never seen a bed before, and the first one I found had the footprint of a generously sized dining room (compared to my size) — then I'd probably not want to get out of bed, ever, either