Min - We are going the Phil and Ted's too - from what I can gather when there is a close age gap and the older bub still may have a sleep in the pram it is the best option as opposed to toddler seats, as you say. I can't quite remember which position older bub goes in when baby is newborn. Baby lies down flat though in the main bit. Older bub is either on top or underneath of course but I have baby brain and have been trying to remember myself