Is there an age when you shouldn't use a hammock for a baby? Like when they're brand new? I have one, but started using it with DD when she was around 4 months. I'm just concerned that the bottom is very soft - it has a floppy mattress thingy - and it's obviously not flat.

I'm just trying to decide if I bother moving the cot all the way down to our room, or do I just put the hammock in there? Would it be alright for overnight use? And do you not wrap bubs in there? I think I may skip wrapping this time anyway as DD didn't like it. What do you do about the back being curved? And their chin, will it sit down on the chest and cause problems?