I will just give you a little information about SIDS..it does not just happen during the night time hours. My g/f was taking her dear sweet little angel for her 6 week check up at 2pm, when she arrived at the parking lot, shut her vehicle down, got out to remove the car seat. She noticed her daughter was not breathing..it was only 15 minutes tops from the time she strapped her in to when they arrived at the doctors office. In memory of Sarah Lynn June 23rd, 2009.