Cheap Summer Duvet at Argos
Reduced from £12.99 to £9.99 at Argos, this is a cheap double Summer duvet.
If you're feeling hot at night it's probably because your duvet is too think. So this is a thinner one, but still enough to keep you warm in the middle of the night.
Argos is selling them in all sizes, so have a search if you need a single duvet, king sized duvet or other.