The unexplained condition, which kills just under 300 babies in the UK every year, is the sudden, unexpected and unexplained death of an apparently healthy baby.
The exact cause of SIDS is unknown, but research shows boys and premature babies are at slightly higher risk.
While sudden death syndrome has no symptoms that parents can look out for, there are a few guidelines on what measure to take in order to avoid sudden death syndrome.
10 ways to help prevent cot deathThankfully enough is now known about cot death for parents to dramatically reduce the risk. The following tips will help to reduce the (very small) risk of cot death and put your mind at rest.
1. Lie your baby down on their back to sleep.
2. Place them 'feet to foot'. Their feet should reach the end of the cot, with blankets to their chest.
3. Don't let your baby overheat: never place a cot next to a radiator; don't use a duvet or any headwear.
4. Don't smoke in pregnancy or around a young baby (dads, too!).
5. Keep baby's cradle or cot in your room for the first six months.
6. Use firm bedding for your baby. No pillows, bean bags or water beds.
7. Don't put your baby into your bed to sleep.
8. Don't fall asleep on an armchair or sofa with your baby - you might smother them.
9. If your baby is unwell, contact your doctor promptly.
10. Don't worry! Cot death is rare, especially after 5 months.
Can swaddling my baby cause cot death?
Swaddling is a traditional practice of wrapping a baby in a blanket tightly, to keep them from moving too much during the night. Recent research has found that this could potentially be harmful, and a possible contributing factor to SIDs.
Dr Anna Pease, lead author of a study at University of Bristol that looked into the causes of SIDs, said: ‘We tried to gather evidence of whether there was an association between swaddling for sleep and SIDS.
'The risk of SIDS when placing infants on the side or front for sleep increased when infants were swaddled.'
The current recommendation advises not placing your child on its side or front for sleep, and this would appear especially important if you have swaddled your baby.
Anna advises parents that, 'most babies start being able to roll over at about four to six months.
'On a practical level what parents should take away from this is that if they choose to swaddle their babies for sleep, always place them on their back, and think about when to stop swaddling for sleep as their babies get older and more able to move.'
Can sharing a bed with my baby cause cot death?Research has confirmed a significant link between bed-sharing with your infant and sudden infant death syndrome.
A study published in the BMJ Open looked at almost 1,500 cot deaths and a control group of 4,500 parents. It found that in a fifth of cases, 1 or both of the parents had been sleeping with their baby at the time of their death, even when parents had avoided other risk increasing factors, such as alcohol, tobacco and drugs.
Current UK guidelines suggest that the safest place for your baby to sleep is in a cot or crib in your room, but it is totally up to parents to decide.
Will giving my baby a dummy prevent cot death?Dummies aren't a means of prevention as such, but they are associated with a reduced risk of cot death. These recent findings are slightly confusing for parents, but basically mean that if your baby uses a dummy, he should carry on doing so.
Experts don't yet know why dummies help in babies who are used to them, but the statistics prove they do. And dummy-users who suddenly stop are at increased risk of cot death.
So if your baby has a dummy, be sure to use it every night. It's thought that it may help by creating more air space if a baby's face gets under a blanket. But this doesn't wholly explain the difference between users and non-users, so there's no reason for you to introduce one as a means of prevention.