The goal of this observational study is to determine if a COPD exacerbation can be detected early in its onset. The main questions it aims to answer are:

• Can an exacerbation be detected before the person recognizes they are unwell?
• What are the biological signals which provide the best indication of decompensation?
• How does this indication of decompensation compare to a daily CAT?

Participants will be asked to place a device, DistaSense, on top of their mattress and then sleep as normal. In addition, they will be asked to complete a daily CAT.

Inclusion Criteria:

1. Confirmed diagnosis of COPD
2. 1 or more exacerbation in the last year
3. Aged over 18 years
4. Willing to use monitoring devices and complete study questionnaires
5. Adequate English
6. Signed consent form

Exclusion Criteria:

1. Pregnancy
2. BMI greater than 45 kg/m2
3. Nil other, provided inclusion criteria are met.

Chronic Obstructive Pulmonary Disease (COPD) is the third leading cause of death affecting an estimated 238 million worldwide. It is a heterogeneous disease which is characterized by air flow obstruction and decline in lung function with symptoms of shortness of breathing, sputum, and cough.