The temperature should be comfortable for you, near 70-72 degrees. Avoid drafts. Ventilate the nursery from a top window or another room.
All infants have sucking needs beyond their need to eat. A clean pacifier may help to satisfy this need. A child also needs an abundance of close personal loving contact (rocking, holding, playing, etc.) Be sure that you do not use a pacifier to replace the touching and loving care that your child requires.
Never put a pacifier on a cord around an infant's neck. Although this makes the pacifier more convenient, it may cause accidental strangulation.