It IS a worry AG, I agree. And I could never understand why they keep it so hot in hospital and make you put loads of layers on your baby then send you home to follow the FSIDS guidelines! At home we have always gone for a vest (the type that fastens underneath the nappy) a babygro with long sleeves and a sleeping bag for all except very cold or very hot nights. If it was very cold I would use a long sleeve vest and if it was very hot then just a babygro and no vest. Oh and lots of pacing the floor outside their room, repeatedly going to check on them and stressing about it, its a normal phase of parenting! Remember that for safety and to reduce the risk of SIDS your baby is better too cold rather than too hot. I personally do not do cold, I am to be found wearing socks in bed from about this time of year until about the middle of April, I like my duvet right over my ears and the central heating was on this morning! If I had to follow the recommendations for reducing SIDS myself, I would be freezing, but my children have both followed the guidelines and never seemed to have their sleep disturbed by being cold and now they are older they dont complain of being cold very often at all.