Person sleeping with mouth open showing mouth breathing during sleep

Sleep Disordered Breathing

April 12, 2026

Key Takeaways

Sleep disordered breathing is when breathing is not smooth or steady during sleep.
It includes snoring, mouth breathing and conditions such as sleep apnoea.
Even mild breathing disruption can affect sleep quality.
It can keep the body slightly more alert during the night.
Gentle changes to breathing can help at the milder end.

What is sleep disordered breathing?

Sleep disordered breathing is a general term used to describe breathing that becomes disrupted, restricted, or irregular during sleep.

It is not one single condition, but a range of breathing patterns that can affect how well you sleep.

You might hear this term used when talking about:

snoring
mouth breathing during sleep
shallow or effortful breathing
pauses in breathing at night

What it can include

Sleep disordered breathing can include:

snoring
breathing through the mouth at night
shallow or uneven breathing
pauses in breathing
the body having to keep “nudging” itself to breathe

At the more severe end, it includes conditions such as
Obstructive Sleep Apnoea and
Central Sleep Apnoea.

If you are concerned about symptoms such as loud snoring, gasping, or excessive daytime sleepiness, it is important to seek medical advice. The NHS has helpful guidance – see links below.

What’s happening in the body

In simple terms, breathing is not as easy or as steady as it could be.

The body may:

take in air less efficiently
work a bit harder to breathe
or briefly wake to keep breathing going

Even if you are not aware of it, this can interrupt the natural flow of sleep.

How sleep disordered breathing affects sleep

When breathing is unsettled, the body often stays slightly more alert.

This can:

fragment sleep
make sleep feel lighter
lead to waking in the night
leave you feeling unrefreshed in the morning

It can also contribute to a busy or unsettled mind at night, as the nervous system does not fully switch off.

Where this sits on a spectrum

Sleep disordered breathing exists on a spectrum.

At one end are medical conditions that need proper assessment and treatment.

At the milder end, breathing may simply be:

a bit shallow
a bit fast
or more through the mouth than the nose

This is where approaches such as nasal breathing and gentle breathing techniques can begin to help.

How I can help

If your breathing feels unsettled at night, we can work with this in a gentle, practical way.

Breathing patterns often respond well when the body begins to relax. As the nervous system settles, breathing can become quieter, slower and more natural without needing to force it.

This is where approaches such as:

relaxation
hypnotherapy
and other ways of easing stress and supporting sleep

can make a real difference.

We go at a pace that feels manageable, and you can practise simple things at home so nothing feels overwhelming.

A simple way to think about it

Sleep disordered breathing is when breathing at night is not as quiet, easy and steady as it could be — and the body has to work a little harder to manage it.