Sleep struggle 4 months lo

Gayathri

Hi mommas, my almost 4 months lo is not sleeping for more than 3 hrs at a stretch at nights. He still has startled reflux so we are tryin to swaddle him but he comes of it eventually n wakes up every 2.5 or 3 hrs. I’m a working mom and I couldn’t go through with this sleep deprivation. Can someone give suggestions on how to handle ? He s on breast milk and top feed formula once a day.