I would try a paci. Honestly, I'd try about anything to not spend 15 hours a day in bed. That does not sound pleasant. I'm sorry you are having to deal with this mama

I agree that 4 months is young, and a milestone age, but if this kiddo is developing well and gaining weight well, I would maybe see a lactation consultant or try something different. 15 hours a day in bed is just so long, its almost all day!
What about your DH, has he ever fed him with a bottle? I might try pumping some (yk, with all that extra time you have

) and seeing if he ate a bigger portion at once if he would be more satisfied. DD did this until she was about 6 months, and a lactation consultant told me to stop nursing on demand for a few days, go 2-3 hours without nursing (it was miserable, dd was pissed) and then feed her. I did, and she went straight to sleep. It was the first 3 hours in a row that she ever slept. I gently rolled away, and replaced my boob with a pacifier. When she woke up from her nap, I had a bellyful of milk ready for her again, and she got full and satisifed again. For us, it was a weight gain issue, DD just wasnt gaining. She gained weight well after we stopped nursing on demand.
I know some people disagree with this method, but it worked for us, and it sounds like you really need a break. I would really talk to a lactation consultant about how often you are having to nurse.
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