Anyone else’s baby seem to have gone backwards in the night??

Charlotte

My little boy was sleeping 9-5 and then back to sleep until about 8.

The last few nights he has been waking up several times on the night from about 1am-5am, most of the time he just wants rocking back to sleep but sometimes he just cries... I was so used to the 9-5 I’m not super tired having been up several time in the night again 😩