Fluffy blankets or pillows are smothering hazards and should never be in your child's cot. Other threats: An outdated cot (one whose slats are more than 2 3/8 inches apart, which could collapse or catch baby); or a mattress that's too soft (another suffocation risk). Also avoid danger spots within reach of your baby. In a few months, your little athlete will be standing while holding the cot rails, and things like plants, artwork, lamps or even blinds (the string is a strangulation hazard) become dangerous. Don't hang mobiles too low (it should be 10 to 12 inches over the cot for a newborn), or put a cot mattress too high for your older child (it potentially allows an adventurous child to climb the rail and tumble out).
Our parenting advice is given as suggestions only. We recommend you also consult your healthcare provider, and urge you to contact them immediately if your question is urgent or about a medical condition.