A recent test on numerous products in the sleep soother market saw the Serene come out with a gleaming review.
Read more here: https://www.independent.co.uk/extras/indybest/gadgets-tech/audio/best-white-noise-machine-sound-sleep-b1860852.html
i-box serene portable white noise machine with nightlight
Best: For all the family
Great for adults and kids alike, this portable white noise machine offers a winning combination of soft lighting and gentle sounds to help you relax and drift off. Kids will like that you can choose the colour of the night light (top tip: go for sleepy, cosy reds rather than harsh blue tones) and the touch controls on the light. You can cycle between 15 noises including deep white noise, Tibetan water bowls and electric fan.
The controls are ridiculously easy to use, with buttons along one side. There’s a timer so you can select between 15-, 30- and 60-minute playback, or go for continuous playback if you like. It’s also got quite a decent volume for its size – we found we never needed to turn it up very high. You can plug this white noise machine into the mains, charge it and then take it out with you, and it’s got a carry loop on it if you wanted to attach it to something.