I'm in desperate need of help!! My 27 month old has started waking at night for hours on end. One night from 11am to 3am then another night 1am to 5:30 and up for the day then and the worst yet - last night 10pm to 4:30am!! I got about 45 mins sleep as also have a 12 day old baby and husband who has to leave for work at 6:30am. He was previously sleeping through and self settled like a dream! He has a nap but I'm wondering if I need to drop it. It's currently 1 1/2 hours. Finishing at 2pm and bed at 7pm. Just worrying he's trapped in an over tired cycle causing more night wakes or if it's the nap causing the night waking. Any advice so, so, so gratefully received!!