The answers are not mutually exclusive, therefore there should be a third option, which is both.. I've got two duvets, a sheet, and a bed spread, it is a fortress of cosy.
Duvet, it's comfier, it's warmer. I would only replace it with a blanket if it was really hot at night, and with me living in England this doesn't happen.
But a decent one can be quite a lot of pounds, worth it though.
I don't use either. I sleep with a Homemade quilt (thin year round) my mother made before she passed away. I'm a Jimmy Buffett fan and she made a quilt with Parrots on it since I'm a Parrothead.So I'll vote blanket, also for the idiots like me that didn't know what a Duvet was I looked it up:
I was going to say duvet, but after reading the definition, I can’t say that. The cover does not zip off, you just throw the whole thing in the washing machine.
I sleep under a comforter and have two cats to add weight.
Duvet. You can buy duvet's in various levels of insulation, and I've found one that works perfectly. Blankets are either freezing cold or insulate with the intensity of a thousand suns.
Duvet thickness is given the best scale name ever (Apart from FLOPS), Tog.
Anyway, if there is a duvet and blanket on my bed, the blanket usually gets thrown off.
A thick blanket, as I've never had the chance to sleep with a duvet. In fact this thread is the first time I've ever heard of one and I had to google what it was.
While in the tropics I prefer a coverlet. It's beginning to freeze over here in Ontario, so right now I like a comforter. A redhead is optional, there for extra warmth.
Blankets might be advantageous during warmer nights in the summer though, so there's that to consider. Then again, I'd just go without any sort of cover if it's that warm.
And I never thought someone would complain about a duvet being too heavy. Just get one which isn't so thick, or something.