Brown noise contains all the frequencies of sound, but with the very low frequencies at greater volume” Dr Browning says. Our tester used each of the white noise machines to settle their six-month-old baby for daytime naps and bedtime.

And while the sound doesn’t settle my baby to sleep, it does provide a reassuring environment for him and has become a regular part of his bedtime routine. A calming night light sits within the face of the machine’s swirl design, offering just the right level of warm-toned illumination. Featuring a handy night light with 7 colour options and 5 brightness levels, use your LUMI to create the perfect bedtime ambience. Beyond volume, there’s some anecdotal debate about whether babies can become reliant on white noise machines to sleep. They are not meant to be played all the time, and many white noise machines have different timers that are around 15, 30, or 60 minute auto-shut off.Once fully charged, it lasts for 5-8 hours, depending on whether you are using the accompanying night light with it. It also has an option to time out after a set time and I like that I can play it through my smart speaker downstairs. It has 24 different sounds, seven colour options and five levels of brightness depending on what you need it for.

Not only cute and stylish in any baby’s nursery, the Pabobo is also an effective white noise machine.My own family has the Filbert bear, which offers five types of white and pink noise, designed to sound like amniotic fluid mixed with a heartbeat, rainfall, sea waves, hairdryer or vacuum cleaner sounds. Our magical machines harness the power of white noise to block out unwanted sounds to ensure a peaceful nights sleep.

With fish and waves projected across the wall and ceiling, the soft lullaby music or white noise will help lull your baby into a deep sleep. When babies are in their cot, sleeping or napping, they can hear what’s going on in the world, including picking up language skills from hearing people talking. With four soothing sounds including heartbeat, pink noise, lullaby and waterfall, the Snuz is a cross between a cuddly toy, a nightlight and a white noise machine. Suitable from birth, it has a one-hour auto shutdown and 10-hour all-night mode - and it's rechargeable.Choose from 11 soothing sounds, including white noise, ocean sound, brook, lullaby, music box, shushing, vacuum cleaner, foetal tone, fair sound, cricket and fan sound. One of the Alexa’s hidden talents is its ability to play ten hours of undisturbed white noise in one go without you having to sign up to anything. It's recommended to keep sound levels to that of a soft shower - around 65 dB if listening for a long period of time. It’s not the cheapest gadget, but with a ten hour battery life on a full charge, a child lock, a design that looks like it belongs on In The Night Garden and lovely lullabies to match, the Dreamegg is a really nice piece of kit. If you’re in a hurry, here’s a quick look at my top five: Which are the best white noise machines in 2023?