A baby's sense of smell is more defined than that of an adult. Research shows that a baby can recognise their own mother/father by their smell. When first introducing a lovey, which is recommended for over 6-7 months old babies, you can use a handkerchief size comforter or hand-sized muslin cloth. Tuck this into your shirt for a few hours to help it take on your mummy/daddy odour, and then place it in the cot while baby sleeps. Make it unique for bedtime and part of the nap/night ritual routine.