I work in a hotel, some people call down the front desk to ask for a comforter but I still don't know what they are talking about ... and the trick when people talk to you about and you don't understand, just nod with a fool smile and say «Yes, yes !». Very useful with people with a strong accent from the southern states and Australia.
What's a comforter by the way ?
Is it a duvet, which is a big bag full of feathers ? If it's that, well my friend, if you want to sleep well get one right away !!