Sorry to ask what may be a very stupid question, but we are expecting our first baby at the beginning of July, a little boy. We can't work out at what stage he will need to wear trousers/shorts to keep his legs warm.
Do people keep their newborn to 3 month babies in sleepsuits (with legs and arms) all the time? Do we need to buy trousers/shorts/romper suits/dungarees? Or, because it's summer, can we get away with putting him just in short-sleeved onesies (the ones with no legs)?