My baby is three months and is going through a grumpy phase for the last three months. He is OK in the day and will happily play in his baby gym and sleep in the sling, but in the late afternoon, from about 4 pm he gets increasingly difficult and won't settle, he wants to do nothing except take catnaps while permanently attached to a boob. Unfortunately I also have a toddler and need to look after her, get her dinner cooked etc. Does anyone have any tips for how to handle this? Most days I end up with a screaming overtired baby by the end of the day.