Women in that age group who reported often or always having sleep problems had a more than
fivefold increased risk of fibromyalgia compared to sound sleepers, while the corresponding risk among younger women was just three times greater.
Both studies found consistent and significant results: a threefold increased risk for lung cancer overall, and
a fivefold increased risk for miners most heavily exposed to diesel exhaust.
Now, if your
risk of a car accident while alert is 1 in 17,000 in a lifetime (as it is), and driving drowsy
increases that
risk to 1 in 3,400 (which is a
fivefold increase), then I would hope that parents would think twice about driving while drowsy.
However, such soft bedding can
increase the potential of suffocation and rebreathing.54, 56,57,179, — , 181 Pillows, quilts, comforters, sheepskins, and other soft surfaces are hazardous when placed under the infant62, 147,182, — , 187 or left loose in the infant's sleep area62, 65,184,185,188, — , 191 and can
increase SIDS
risk up to
fivefold independent of sleep position.62, 147 Several reports have also described that in many SIDS cases, the heads of the infants, including some infants who slept supine, were covered by loose bedding.65, 186,187,191 It should be noted that the
risk of SIDS
increases 21-fold when the infant is placed prone with soft bedding.62 In addition, soft and loose bedding have both been associated with accidental suffocation deaths.149 The CPSC has reported that the majority of sleep - related infant deaths in its database are attributable to suffocation involving pillows, quilts, and extra bedding.192, 193 The AAP recommends that infants sleep on a firm surface without any soft or loose bedding.