getting baby to sleep at night

Elise • Me
So my 9 month old still doesnt sleep through the night. Hes both formula and breast fed. My husband and i have tried everything to get him to sleep semi close to through the night. He still wants to get up every two hours most nights. We tried formula at bed, rocking, snuggling, oatmeal before bed. He has eczema so he can't have a bath everyday. We tried routines. Nothing is seeming to work. We currently live with my in laws and are not allowed to try the cio method bc we will disrupt their sleep. Any ideas would be greatly appreciated