The sidecar cosleepers sound like a great idea.

Personally I'm not sure if it would work for us as DS likes to actually be touching me when he sleeps however I have heard a lot of other people have found them quite good. Some people take the side off the cot and put it next to the bed and we tried that but it left a nasty gap I imagine he could roll into so a purpose built cosleeper may be better.

Another option- would you and your husband be willing to sleep separately for some/all of the night? My DP sleeps in another bed if she has had a drink or sometimes just so we can all sleep better.

I think some people recommend to have baby between mum and the side of the bed anyway as apparently fathers are not as aware as mothers of the baby's movements (I don't know how others have found this in practice) but if your husband could be rolled out of bed asleep then he probably sleeps too soundly to be next to baby.

As for bedding- i was wearing warm winter PJ's with a dressing gown or fleecy jacket on top and just had the blanket up to my waist. Now it has been warmer we don't use any bedding. I think when winter comes I will try and heat the room rather than using heavy bedding. We have found it tends to work better if DP and I have separate single blankets. DP sort of wraps the blanket around her legs like a sleeping bag (she doesn't move much in her sleep).