Carry cot

Your newborn will be comfortable and safe in his carry cot for the first 6 months after birth.  These carry cots can be so comfortable that they could be used as a bed while travelling, or during daytime sleeps.
Sometimes considered an accessory to your stroller, they are usually sold separately from the structure, and although highly advisable they are not obligatory.
If you have a summer baby, for example, or you need a more compact carry cot, there is also a choice of light-weight cots or nests, that can be strapped onto your stroller, for example the Lite Cot from Cybex.