My Ooman is such a softie. We've had some chilly nights here of late, but every night she fills a hot water bottle and puts it right in the middle of the bed so that I can curl up and go to sleep on an extra warm bit of nice, squidgy duvet. Bless her, she even sleeps on the edge of the bed, shivering under a thin strip of bedding so as not to disturb me. I'll admit, she does tug at the duvet in an annoying way sometimes, but I don't think she realises she's doing it (in her sleep, after all), so I turn a blind eye.
I let her know how much I appreciate it by licking her face until she wakes in the morning. I like to think it saves her a few extra minutes in her morning routine.