annexe...

We are buying a zip on annexe for our awning, but have looked at the "inner tent" thing, and do not like the idea of sleeping inside it.  Is it possible to sleep in the annexe, and be dry and warm in summer???  Fed up with making up beds every evening and putting back in the morning, and not able to buy new caravan!!  Awning is new Bradcot, so will be Bradcot annexe, any advice v welcome!!!!