Bia Smart Sleep Mask

Name: Bia Smart Sleep Mask
Brand: Sleep Tracker
SKU: product-0057
Price: 705.00 GBP
Availability: InStock
Rating: 4.8 (48 reviews)

£705.00

PRE-ORDER for estimated January 2027 Shipping The Bia Smart Sleep Mask is a neurofeedback sleep device that monitors brain activity in real time using fNIRS sensors embedded in the mask.

Real-time fNIRS brain monitoring tracks sleep stages accurately
Neurofeedback coaching may increase time in deep sleep
Time Shift programme designed to reduce jet lag
Smart sunrise alarm wakes you at the right sleep cycle point
Side-sleeper-friendly design with machine-washable fabric layers

4.8 (48 reflections)

One-time purchase£705.00

Secure checkoutFree delivery over £5030-day returns

Sleep TrackerBia Smart Sleep Mask

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About This Product.

PRE-ORDER for estimated January 2027 Shipping

The Bia Smart Sleep Mask is a neurofeedback sleep device that monitors brain activity in real time using fNIRS sensors embedded in the mask. It tracks sleep stages throughout the night and uses that data to coach you through them, with the aim of helping you fall asleep faster and spend more time in deep, restorative sleep. In the morning, you upload the night's data to the Bia Sleep App and review detailed sleep stage insights alongside personalised guidance.

Beyond tracking, Bia actively intervenes. Neural Soundscapes — piano, ocean, and noise options — play through built-in speakers and respond to your brain state. A smart sunrise alarm wakes you at an appropriate point in your sleep cycle. For travellers, the Time Shift programme is designed to address jet lag. Guided meditation is also built in. Bluetooth streaming with Auto-Pause means you can fall asleep to your own audio without any manual fuss.

The hardware is engineered with practical wear in mind. The 3D design is fully light-blocking with deep eye pockets, there are no hard components over the ears for side sleepers, and the fabric layers are machine washable via a medical-grade velcro attachment system. The electronics detach cleanly for cleaning.

This is a product for someone serious about sleep quality — whether that is an athlete monitoring recovery, a frequent traveller managing time zones, or anyone who has found standard sleep trackers too passive to be useful. The lifetime app subscription is included.

How to Take It

Charge the mask fully via the included USB-C cable, then download the Bia Sleep App and pair via Bluetooth. Select your programme — neurofeedback, guided meditation, or Time Shift — before bed, put the mask on, and it runs throughout the night without requiring an active Bluetooth or WiFi connection. In the morning, open the app to upload your sleep data and review your insights; to clean, detach the electronics via the velcro attachment and machine wash the fabric layers.

Frequently Asked.

How does fNIRS brain monitoring differ from typical actigraphy sleep trackers?

Most consumer sleep trackers — wristbands, rings, under-mattress pads — infer sleep stages from movement or heart rate, which is indirect. fNIRS (functional near-infrared spectroscopy) measures changes in blood oxygenation in brain tissue, giving a more direct read on neural activity and sleep stage transitions. It is the same measurement class used in some clinical research settings, applied here in a wearable form.

Does the mask need to stay connected to my phone all night?

No. Once you have selected your programme and put the mask on, it runs independently throughout the night without requiring Bluetooth or WiFi. You connect to the app in the morning to upload your sleep data and access your insights.

Is it genuinely comfortable for side sleepers?

The mask is specifically engineered with no hard components positioned over the ears, which is the main pressure point for side sleepers with most masks. The 3D design with deep eye pockets also means the mask surface does not press directly onto the eyelids. Fit is adjustable for comfort.

When will the Bia ship, and what does pre-order mean for my purchase?

All orders are currently pre-order only, with shipping expected July/August 2026. Check the product listing or contact us directly for the most up-to-date fulfilment information.

What is the Time Shift programme and who is it for?

Time Shift is a built-in jet lag programme designed to help you adjust to new time zones. It is most relevant for frequent travellers or anyone whose sleep schedule is regularly disrupted by crossing time zones. Select it as your programme before bed and the mask uses its coaching tools to support the adjustment.

Customer Reflections

Overall Sentiment

4.848 reflections

1 – 6 of 48 reflections

Part of my morning routine now

4 months ago

The sleep data I get each morning has genuinely changed how I approach recovery. I'm a cyclist and I used to guess whether I'd had a good night — now I know. The app breakdown of sleep stages is detailed without being overwhelming. Upload takes about 30 seconds, I scan it with my coffee, done.

First night was genuinely surprising

4 months ago

I was sceptical — £700 for a sleep mask felt excessive. But the first morning I opened the app and saw a breakdown of my sleep stages with actual commentary on what affected them, I got it. It's not just tracking, it's doing something with the data. The Neural Soundscapes shifted mid-session in a way that felt eerily well-timed. Early days but first impressions are strong.

Finally something that does more than count steps

4 months ago

I'd had a wrist tracker for years and it told me I slept badly without ever helping me sleep better. This one actually intervenes. The ocean soundscape responding to my brain state felt gimmicky until it didn't — I started noticing I was drifting off quicker, and the data backed it up.

Side sleeper approved

5 months ago

Tried a couple of other sleep masks with speakers and always ended up pulling them off at 2am because of the pressure. No issue here — nothing hard anywhere near my ears. Comfortable enough that I forget I'm wearing it.

Really solid, but the piano soundscape isn't for me

5 months ago

Everything about this is well thought-through — the fit, the light blocking, the app. My only gripe is personal: the piano Neural Soundscape triggers some kind of alert response in my brain rather than relaxing me. Ocean and noise options work much better. Would love a wider selection of soundscape types in a future update.

Worth it for the app alone

5 months ago

Honestly the hardware is more comfortable than I expected for something with sensors in it. Side sleeper here — no pressure on my ears at all. The morning coaching notes in the app are specific enough to actually be useful. Been using it for a couple of weeks and I'm already more consistent about wind-down time because I know the mask is going to tell on me.

Bia Smart Sleep Mask

About This Product.

How to Take It

Frequently Asked.

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