Adorable 4-Month-Old Girl Gets to Ring Bell After Beating Brain Cancer in Heartwarming Video Leann and Patrick Borden's baby girl Lillian Grace was diagnosed with brain cancer shortly after she ...

In total 4-month-old babies need 14.5 hours sleep over 24 hours. Naps should total around 4 to 5 hours a day. Wake windows for babies aged 3-6 months are between 1.5 and 2.5 hours.