We have the Angel Care mat and monitor and it is great. As DD was born early she had a few 'waxy' episodes in SCN. It gave us peace of mind when we brought her home. It has gone off once and she was ok but it took me a few seconds to wake her up. I think she was in a deep deep sleep?

One thing to mention is if you have a pedestal fan on or near the cot, the vibration of that fools the monitor into thinking the baby is ok. Once we took out DD but forgot to switch of the monitor, about an hour later that thing went off...

Ours is about 2.5yrs old so they may of fixed that issue