Sleep Regression HELP!!!

Yakira

My LO is 6 months and this week started the interruptions in her sleep schedule. If she doesn’t feel either her father or I she’ll wake up and even if with next to her she’ll wake up around 1:30-2:00 every morning and she’ll want one of us to just hold her while she’s sleep. Her schedule was 7:30 p.m. to about 6:30-7:00 a.m. Any advice on how to get her back on track? And how long was this phase for you guys.