Sense-U Smart Baby Monitor with Sleep Movement Sensors: Tracks Your Baby's Sleep Position, Rollover, Feeling Temperature and Sleep Activity with Audio Alarm on Smartphone https://amzn.eu/d/dz1FrYu This is the first other one I found
As I say I don't know about which is best but I just thought I would also say I'm sorry about the loss of your friends baby and it must be difficult experiencing this worry.
Firstly, while it’s devastating what’s happened to your friend it’s incredibly rare for a baby to die of SIDS. A word of warning on those monitors they aren’t all completely accurate and can cause more anxiety if they keep going off but everything is fine.
If you do go for one, find one that’s FDA cleared as they’ll have done the appropriate testing for it to be classed as a medical device :)
Thank you both of you xx
I have the Babytone smart baby monitor - https://www.amazon.co.uk/Tracking-Movement-Wearable-Bluetooth-Version-Sock/dp/B0BNPY811N/ref=asc_df_B0BNPY811N/?tag=googshopuk-21&linkCode=df0&hvadid=641811722858&hvpos=&hvnetw=g&hvrand=6338147177243040510&hvpone=&hvptwo=&hvqmt=&hvdev=m&hvdvcmdl=&hvlocint=&hvlocphy=9045147&hvtargid=pla-1945682101650&psc=1&mcid=c1879a60262c326380e5e06107579995
I found the Owlet on discount: https://www.babyplanetonline.co.uk/owlet-smart-sock-v3-and-cam-v1-duo-mint-emmasdiary
If you Google "on baby sleep monitor" there's a couple, ones called sense u which clips on their diaper. I think there's something else which is a mat under the baby. I haven't tried any of these things I am due March but they are just alternatives to look into