I read this board often but rarely post but saw this discussion.
The most popular doonas these days are a good quality microfibre doona with a cotton japara cover.
These doonas are light, lofty and warm to sleep under if they have a fill weight of around 400gsm or more. They are generally fully machine washable and anti allergenic. A good quality microfibre doona gives the same feeling as sleeping under down at a much lower price than a down and feather doona. There a are lot of cheap microfibre doonas around with a microfibre cover so you need to be careful with what you buy.
With down and feather doonas it is best to stay away from the cheap ones as if the feathers aren't washed properly it is really scarey what is inside the doona. The feathers and down need to be washed and sanitised several times to remove all the bits and pieces attached to them.
Wool can get be good but it depends on the quality of the wool used inside the doona. There is cheap wool and more expensive which will reflect on the price you pay for the doona.
Another hint if you haven't thought about it is to buy the next size up from your bed size. If you have a queen bed by using a king size doona on it, apart from looking much nicer, it actually makes it a bit warmer as it hangs further down.
One other thing to remember is that due to government health regulations there are restrictions on the return of doonas so it is important to make sure you have purchased the right one for your needs.
