Product Update #1
I want to share a few tips that can make a big difference in how Bía feels.
Michael Byrne September 09, 2026 3 min read
I want to share a few tips that can make a big difference in how Bía feels.
Bía is built differently than your typical sleep mask, so it will feel new at first.
We like to think of it like wearing a ring on a new finger and breaking in a pair of runners at the same time.
Your body needs a little time to get used to wearing something new and you may need to make small adjustments to find your fit.
Start with the fit
1. Don't overtighten the strap
You only need enough tension to keep Bía secure and block out light. Once you find your fit, leave the strap there and simply slide Bía on and off each night.
2. Move Bía up or down
Small changes can make a big difference. Adjust the mask around your eyes until the pressure feels right while keeping the sensors against your forehead.
3. Adjust the angle of the strap
Generally, the strap behind your head should sit under the base of your skull. If you're wearing Bía like a pair of glasses, try moving the strap lower. Adjusting the strap up or down will change the pressure on your face as well as improve blackout.
4. Adjust for side sleeping
Before settling onto your pillow, shift Bía slightly toward the pillow. As you rest your head, the pillow will help move the mask back into place.
5. Check your ears
Make sure they are flat against your head and not folded under the mask.
6. Adjust your pillow
The thickness of Bía may change the angle of your neck while you sleep, especially if you're already using a firm pillow. We recommend trying a softer pillow to bring your neck back into alignment with the rest of your body.
Give yourself time to adjust
There's no prize for wearing Bía all night on day one.
We recommend starting small:
Day 1-2: Try a couple Nap sessions to get your body used to the new experience. Get used to the blackout, sound, fit, and feel. Make small fit adjustments as you go.
Days 3-7: Add Bía to your bedtime routine and try the wind downs without the expectation of wearing it all night.
Week 2: Keep building. As Bía becomes more familiar, wearing it should start to feel like a normal part of going to sleep.
You may move through this much faster, or you may need a little more time. Both are completely normal.
The most important thing is not to treat your first fit as your final fit. Move the strap. Change the angle. Loosen it a little. See what feels right for you.
A few small adjustments can completely change how Bía feels.
Tighten Bía enough to block out light. From there, choose the feel that helps you relax. A secure fit is important. Extra tension isn't.
Slight marks can happen when Bía is worn too tight for a long period of time. They are not permanent and it's a common occurrence for sleep products such as CPAP sleep masks.
For your next session, loosen the strap a little.
To help the marks fade, splash cold water repeatedly on your forehead and massage the area in circles for 60 seconds.
Ear discomfort can happen when the mask or strap creates new pressure around your ear.
This often eases after 3-4 nights as your ears adjust. In the meantime:
- Make sure your ear is not folded.
- Try sleeping on your back.
- Use a softer pillow.
Bía adds material under your head. For side sleepers, this can lift your head and change the alignment of your neck, back, and head.
Try using the edge of your pillow so Bía has more room. You can also try a softer pillow to bring your body back into alignment.
Face pressure often comes from the angle of Bía.
Raise or lower the strap placement on the back of your head. As you move the strap, you should feel the pressure shift.Aim for even pressure across your cheeks and forehead. If you're still having issues, try loosening the fit.
A few small adjustments can help.
- Raise or lower the strap placement on the back of your head until pressure feels even across your cheeks and forehead.
- Adjust Bía so the sensors sit slightly above your brow.
