This is an insanely stupid question but I don't know the answer so...I'm obvs trying to buy various clothing for when little one arrives and as we are team yellow it's pretty much just sleep suits and baby grows and vests at this point...my question is...what is the difference between them? Obviously I know that sleepsuits have long arms and legs but would you put a vest underneath it (or under other clothes) or could they just wear a vest on its own (if just round the house in summer)? Also will they wear many long sleeve sleep suits in August? I genuinely have no idea what to get and can imagine turning up to the hospital with completely the wrong things also how many of each is an average but not over the top amount to stock up on? Much thanks