My 11wk old son's sleep pattern suddenly changed. It seems this weekend he started napping during the day and as of yesterday isn't having any sleep more than 2 hours at a time. I don't understand the change. The only actual change is that during the day if he naps I put him in his crib while at night we co-sleep.
Previously, he would sleep till between 9-11am and be awake until around 3 or 4pm (sometimes awake til 6pm which seemed to becoming more apparent until this past weekend) then start napping for an hour or two at a time and eat upon awaking. If he did sleep during his usual wakeful period, he would not sleep more than about 30mins-1hour.
Now he seems to be sleeping like he was when he was an infant, he'd be awake for an hour or two, sleep for an hour or two and so on. Of course, feeding upon awaking.
Now, I'm breastfeeding on demand. The only issues I was having previously was that he would sleep 2 4-hour segments and just eat till he fell back asleep then every 2 hours after that which would periodically cause engorgement in a breast. I'd just pump after feeding him that morning and would be fine. I freeze my milk for when I go back to work. I plan to solely feed for 6 months then go back to work and breastfeed on demand when I'm home. We'd also go to be around 8 or 9pm too.
It's just odd that all of a sudden, it seems to me, that his sleep pattern changed.
Anyone have any previous experience or recommendations?