How long do newborns need to be completely flat for?

[feelingratheroverwhelmed]

Hi all,
My DS is 8 weeks old and I'm about to order a Britax B Dual for him and his older brother. I have a Britax already which I'm using with the carry cot at the moment. The carry cot should fit on the new pram but I don't think I can fit that plus the second seat underneath for DS (2yrs). The second seat underneath goes pretty flat though.

Sooooooooooo, I want to avoid having to buy the soft carry cot insert for the bottom seat if possible as it's just not going to be worth it. Will this be okay? Or am I just being paranoid!!

To be honest, with the B-Dual you really need the soft cot insert to put the baby in underneath because it gives you vital leg support until they are six months old. Personally I would sell the hard carrycot and invest in the soft one, because as you say the baby will be better underneath with the toddler n top.

Just to add the B-Dual seat goes flat if you undo the clips so technically is fine for a newborn, but I know by 3 months people have said their baby is hanging off the edge of the seat and have then bought the soft cot.

Why don't you go and try your 8 week old in a b dual somewhere to see if he fits neatly at the bottom. We have a b dual and my dd and dn were both really short so I think they would've been fine at that age.

Also have a look here, click on "B-DUAL configurations" then scroll down to the bottom. There's a picture there with the hard carrycot and bottom seat being used. The carrycot is on the adapters things to move it along away from the handle, so there's a bit more room. Maybe this is another thing it would be good to try out in a shop (maybe take along your carrycot in case they don't have one on display).

If the hard carrycot is definitely not suitable, you can always just get a different brand soft carrycot to save a bit of money.

I can't link direct to it. But here right at the bottom is a carrycot photo. I think the little girl was just over 2.5 years old. The mum decided the carrycot compromised her too much (she is semi reclined in the photo) and she swapped to a soft cot at the bottom later on.