Bare bottles

Brittani • 29.. Married 2012.. Boy mama💙 and another 👶🏼 on the way!
So, I followed the trend and bought all bare baby bottles for when my baby is born to use with breast milk while I'm working and it's with my mom. Does anyone have any experience with these bottles? Did you and baby like them? I'm a little confused that the baby can't lay down drinking from them. Thanks!