8 months old not sleeping at night
My little one have always been a bad sleeper but after her 6 months sleep regression is gone from bad to worse. Now we harder get a good night sleep cause she refuses to sleep at night. Her bed time used to be 7-8pm then it became 10pm then 12am and now she is sleeping at 4am every night and we are literally going crazy. Even tho we try to wake her up by 9am and reduce her naps she still wakes up in the middle of the night super hyper and playing. And it’s not like she is not doing a lot in the day she is very active in the day as well. We tried letting her last wake window be between 3-4 hrs then put her to bed at 10pm but she will still cry and wakes up by 12-1am and plays till 4am to sleep. On some says she sleeps all the way to 12pm and we can’t even wake her up early as she will get angry and cry. She is underweight as well and i suspect her poor sleep might be a factor too. Other than her poor night sleep, she is a very happy baby and reaching all her milestones. But we are not happy, the lack of sleep is driving us insane. Any advice?