CenTrial Logo

A Promising Alternative to Medication: FIR-Emitting Pajamas for Poor Sleepers


Clinical trial shows that FIR-emitting pajamas can provide an alternative to medication for poor sleepers

Sleep difficulties are common and affect many people worldwide, causing daytime consequences such as fatigue and impaired functioning. Optimizing the sleep environment, including clothing, may help alleviate sleep problems. Far infrared (FIR)-based textiles have been shown to promote blood circulation and improve metabolic function, making them a potential therapeutic alternative for poor sleepers.

Clinical Trial

In a pilot study, researchers investigated the effects of FIR-emitting pajamas on sleep quality in adults with poor sleep quality. The study was a randomized, sham-controlled trial that included forty subjects randomized to FIR-emitting or sham pajamas in a 1:1 ratio. The primary outcome measure was the Pittsburgh Sleep Quality Index (PSQI). Other measures included the Insomnia Severity Index, a 7-day sleep diary, the Multidimensional Fatigue Inventory (MFI), the Hospital Anxiety and Depression Scale, the Epworth Sleepiness Scale, and the Satisfaction with Life Scale. The outcomes were measured at baseline and weeks 2, 4, and 6.


Both groups showed improvements in the PSQI score within their groups, indicating that both FIR-emitting and sham pajamas positively affected sleep quality. However, there was no significant difference between the two groups. Interestingly, FIR-emitting pajamas performed better than sham pajamas in reducing the MFI-physical score. This finding suggests that FIR-emitting pajamas may improve physical fatigue in adults with poor sleep quality. Additionally, the intervention compliance was satisfactory, indicating that participants could use the FIR-emitting pajamas as instructed.

Are you interested in clinical trials near you?

You can receive free notification of a trial for this, or any other condition, by completing a short confidential health profile.
Find a clinical trial near me


While FIR-emitting pajamas may not be superior to traditional pajamas in improving sleep quality, they may reduce physical fatigue in adults with poor sleep quality. This pilot study provides preliminary evidence that warrants further exploration in more extensive and diverse populations. It is essential to continue exploring non-pharmacological interventions such as FIR-emitting pajamas to help individuals with sleep disturbances improve their overall well-being.

Share this article with a friend:

Get emailed clinical trial results in the categories of your choice:
Free subscription to clinical trial results

Signup to be notified of clinical trials near you that match your condition

Signup and be matched to trials near you
This free service will notify you of current and future clinical trial matches.

This content is for informational and educational purposes only. It is not intended to provide medical advice or to take the place of such advice or treatment from a personal physician. All readers/viewers of this content are advised to consult their doctors or qualified health professionals regarding specific health questions. CenTrial Data Ltd. does not take responsibility for possible health consequences of any person or persons reading or following the information in this educational content. Treatments and clinical trials mentioned may not be appropriate or available for all trial participants. Outcomes from treatments and clinical trials may vary from person to person. Consult with your doctor as to whether a clinical trial is a suitable option for your condition. Assistance from generative AI tools may have been used in writing this article.