hi i am due my second child in 10 weeks- baby one use ot stop breathing and i had an under mattress sensor pad however i was always so worried when out and about and got post natal depression i think due to this problem. i have read about snuza monitors but they are about 80 pounds- they attach to the babies' nappy-no wires or radio signals which seems good ???i dont even know if they are any good? anyone have any expereince of these?