Worth investing in wool sleeping bags?

[Littlebagoflaughter]

I stumbled across a site selling wool products which claims wool helps people sleep better. We have had a struggle keeping our toddler the right temp as the temp in his room drops a lot overnight so thought wool might keep him better regulated. Is wool worth the expense?

We bought one, has made absolutely no difference to how DD sleeps!

I decided to get a wool duvet instead as he will need one eventually, will be interesting to see if it is better at keeping him at the right temperature or not!