Well, AI or not.. I can vouch for cats bringing dead things into their owners beds.

Why I twigged on it, was that my dads cat, Gandalf the Gray, used to bring him dead mice and leave them by his head when he was sleeping - or if it happened during the day, she'd just leave birds on his pillow.

He would always thank her, give her scritches, then when she wasn't looking, flush the carcasses..

It was love.