I was on the fence on purchasing the owlet sock but I am so glad I did. This allows me to get a restful nights sleep knowing I will be alerted if something were to go wrong while my baby sleeps. I also really love the tracking aspect of his sleep so that I can keep track of nights he gets a good nights sleep and when I need to adjust his bedtime/wake schedule to get better sleep.
I have four children and have used the Owlet with each one. I honestly can not sleep without it. I have had it alarm several times over the years once it alarmed high heart rate alerting me that something was wrong. It was discovered that it was alarming because he had meningitis which he was hospitalized for. Another time it alarmed for low oxygen. I took my son in and he was diagnosed with RSV and was admitted to the hospital. Having the Owlet keep an eye on my kids while I sleep has slowed me to actually be able to relax and not worry.
It's great at monitoring heart rate, oxygen levels and when babe is awake, light sleeping or deep sleeping! I love that it also has predicted sleep windows. Those have been really helpful with navigating life.