Sleep Series: ResMed S+ Sleeptracker

As promised for far too long, here is the final segment of my sleep series!

The ResMed S+ Sleeptracker is the world’s first non-contact sleeptracker. I have tried a sleeptracker app in the past, which was good, but I had to keep my phone on the bed. I really didn’t like the idea of my phone being there and it encouraged me to be on it rather than just leave it alone and try to sleep. I have also come across the wristband sleeptrackers, but I cannot wear anything on my wrists during sleep. I don’t keep any jewellery on at night and find it uncomfortable, so I knew that wasn’t an option for me.

I was excited when I heard about the S+ as it seemed to be everything I wanted.


As you may have seen from the rest of the sleep series, sleeping is something I have always struggled with. While a sleeptracker will not make you sleep better directly, it will help you to identify issues with your sleeping patterns and habits.

The S+ was really easy to set up. You download a free app to use with it, then connect them via Bluetooth. The app asks a few questions about age, etc. just to get to know you a bit and determine averages for others like you.

To turn on each night, you are asked a few multiple choice questions, such as how many caffeinated drinks you’ve had, amount of alcoholic drinks, whether you were stressed that day. It’s really easy and only takes seconds. Then you hit the start button and put your phone down (not on the bed). Throughout the night, it monitors your breathing and movements during sleep to determine which stage of sleep you’re at.

When you wake up, you hit the stop button and can check your sleep score out of 100. Mine ranged from a terrible 39% to 94%.  Knowing these scores, I could look a little deeper into why. The S+ measures room temperature, light and noise levels as well as the times you went to sleep and woke up, alongside your states of sleep, such as REM sleep. With all of this, plus the information I put in myself, I could determine what was affecting me most.


It has a few extra features, including ‘Mind Clear’, which is just like a notes app for a brain dump before bed. Lots of people stay up because they’re thinking about things or stressed about the next day and things they need to do. It’s a great place for a to-do list or a rant before bed. I haven’t actually used this feature as I don’t feel I need it. I live by to-do lists so don’t need more at night, and I’m all ranted out by bedtime!


There is also a ‘Relax To Sleep’ button, which lets you choose a relaxing sound to fall asleep with. I had recently downloaded another app for this purpose. However, when sharing a room with someone you can’t really use this, unless they like to feel like they’re laying on the beach too. My boyfriend is one of those sleepers that just looks at a pillow and drifts off. I’m so jealous! He is, however, a light sleeper so playing some tunes to go to sleep with would be a bit harsh.

The other main feature is a smart alarm, which wakes you up when you are in a lighter sleep, rather than the horrendous wake up call when you’re mid dream. It means you wake up a little fresher and definitely works for me. I feel I’m eased awake. You set it for half an hour before you actually need to be up, and it will choose within that time frame.

I do really like tracking my sleep, and find I learn more about my sleep habits from it. I think the best feature for me is the personalised advice you receive while using it. For example, the app gave me information on how long it took me to fall asleep and gave advice on how to change that.


There are a few problems I found while using it. Firstly, I’d forget all about using it. At first I wasn’t using it to it’s full potential as I didn’t use it enough times in a row. I’m trying to get more of a night time routine and will be including the sleeptracker.

Another thing is bed sharing. Apparently it only picks up the person closest to it, but if it’s monitoring movement as well as breathing, it can’t tell who is moving.
The other issue I had was waking up in the night and checking the time on my phone. I pressed the stop button, and rather than a ‘go back to sleep’ option, I had to start again. I’m not sure if I pressed something to make it stop tracking completely, but I’m likely to do that again. I have only done it once though, and doubt it would make much difference overall.

You can find more information on the S+ website. Most sleeptrackers are quite expensive, with this one coming in at £129.95 on Amazon.

I think it would be great for people who want to understand their sleep better and get advice as they go along. It’s like having your own personal sleep trainer. You can Google sleeping advice, but this is more personalised and relates to your sleep data.

I do wish it would double up as a lamp so that when sat on the bedside table, it’s not useless until I’m going to sleep. However, it is quite modern and stylish so at least it looks nice.


Collects data on light, noise and temperature to get sleeping environment right for you.
Smart alarm for nicer wake up call
Mind clear before bed
Relax to sleep option – can also be used in the day for a few minutes of calm
Learn more about your sleeping pattern

Only a sleeptracker. No other feature – make it a lamp!
No ‘go back to sleep’ option
Can only be used for one person, other person may affect results

Sorry for such a long review, but I didn’t want to miss anything out. This is not a cheap option, so I would rather tell everything I can think of for people to make an informed decision. Maybe it was so long it bored you to sleep, in which case, don’t bother buying and read more of my posts!

Have you ever tried tracking your sleep? Did you find it helped? Or are you considering trying to track it? If you have any questions, I’d be happy to try and help.

Tina x
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Disclaimer: I was sent this item for review, but all opinions are my own.