16.5 month old stopped sleeping

Chelsie

My daughter has been a horrible sleeper since 6 months old. She finally started improving within the past month and actually slept through the night three times over the past couple weeks! Lately she wakes up 2-4 times at night which for her is really really good. However, the past 2 nights she has slept 10p (her usual bedtime) to 2a and been awake for the day. Her nap times are still an hour. I truly don’t know how she is surviving on 5 hours of sleep in a 24 hour period. She’s not grumpy & is actually totally herself otherwise.

I’m so discouraged since she was finally starting to sleep well (for her). My husband works long days and it’s just us two most of the time. I’m used to being sleep deprived, but admit it’s difficult caring for her on 5 hours of sleep.

Has anyone else’s child started sleeping 4 hour nights?