Noise is one of the most recognizable stimulus that disrupts sleep. Anyone who can’t get to sleep because of a loud stereo or wakes up to the sound of a barking dog, will typically know exactly what woke them up. It is very important to keep a quiet sleeping environment, not only for the initiation of sleep but to stay asleep too.
Sound is typically measured in decibels (db), and relatively defined to the threshold of human hearing (0 db = the point at which sound can begin to be heard by a human). A normal conversation is about 60 db while a quiet bedroom at night may be around 30 db. Researchers have shown that traffic or aircraft noise that elevate the bedroom noise level to as little as 40-45 db (the level of a quiet library), can increase awakenings from sleep, prolong the time it takes to fall asleep and disrupts normal sleep architecture by increasing the lightest stage of sleep (Stage N1).
Recent studies have shown that the peak volume of the noise may not be the most important aspect, however. These studies suggest that it is more the difference between the background noise and the peak volume, giving support to age old motherly wisdom of using white noise to help children sleep. The same is true of adults. It takes as little as a 10% increase in room noise to fragment sleep. Ear plugs can reduce both background noise and any loud noises that may occur in the sleeping environment.
√ High quality “ear filters”
√ Super soft foam
√ Noise Reduction Rating of 32 db