Cot death advice ligic

[MacMomo]

My leaflet on preventing cot death says not to put baby on a cushion or pillow. Does anyone know why? Is it because they need a firm mattress underneath and a cushion isn't firm enough? Would a very firm one then be ok? Mum just had my newborn on a very firm large cushion. Is that ok? Nervous new mum here!

[Seona1973]

its more a suffocation and overheating risk than to do with firmness

[naturalbaby]

both my boys have had plenty of naps when tiny on cushions and sofas, and slept on our bed with several pillows and a big thick duvet. ventilation is my main concern so if the room is really warm and stuffy then i wouldn't let them sleep there. i also tended to do the besotted mum routine of watching them sleep.