Thanks snow.
I have been searching ebay and will keep watch on a few.
I cant post on here unfortunately asking if anyone has one i can borrow

DS is asleep on his tummy atm. He has very strong neck muscles and always has his head to the side. I am happy but DH is nervous about it.

And now our normal monitor is shot! so i have no monitor at all to hear a thing!
So hoping i can pick a sensor one up for a reasonable price

There is the babysense ones to.... not sure what they are like?