He's 3.5mo. I've used it since newborn (it's a Moby) and he loved it then, but recently will on be in it for 10 mins before he gets agitated. I've changed his position so his legs are out now, but it doesn't seem to help, he prefers me carrying him so he is facing out (not very practical with a toddler to contain as well). Is there a way of 'wearing him' so he faces out? I've had to resort to getting the pram out, which is so much of a faff!