Participants in the intervention group will attend 8 weekly online meetings lasting approximately 60 minutes each (generally structured in an initial 10 minutes for questions about the practices, 15-20 minutes of exposition on the central theme of the meeting, 5-10 minutes for class practice, 10-15 minutes for post-practice inquiry, 5 minutes for explanation of the week's informal practice and audios for daily practice). Audio in mp3 of the practice carried out at each meeting will be provided to maintain daily individual practice during the week. An online questionnaire related to weekly practices will also be left at the beginning of each meeting.

In the control group there will be no intervention. Participants will only participate in the initial meeting explaining the study design and their role in it, inviting them to complete the questionnaires at the same time as the intervention group. They will commit to not receiving any intervention and will be asked not to participate in any meditation or mindfulness sessions during the period of application of the POMBM to the intervention group (8 weeks). After the end of this period, it will be offered the possibility to take the POMBM as they wish.

Participants in the intervention group will attend 8 weekly online meetings lasting approximately 60 minutes each (generally structured in an initial 10 minutes for questions about the practices, 15-20 minutes of exposition on the central theme of the meeting, 5-10 minutes for class practice, 10-15 minutes for post-practice inquiry, 5 minutes for explanation of the week's informal practice and audios for daily practice). Audio in mp3 of the practice carried out at each meeting will be provided to maintain daily individual practice during the week. An online questionnaire related to weekly practices will also be left at the beginning of each meeting.

- PSQI (Pittsburgh Quality Sleep Index) - instrument consisting of 19 self-report questions categorized into seven components, graduated in scores from zero (no difficulty) to three (severe difficulty). The components of the PSQI are: C1 subjective sleep quality, C2 sleep latency, C3 sleep duration, C4 habitual sleep efficiency, C5 sleep changes, C6 use of sleeping medications C7 daytime sleep dysfunction. The sum of the values attributed to the seven components varies from zero to twenty-one in the total questionnaire score, indicating that the higher the number, the worse the sleep quality. A total score greater than five indicates that the individual is experiencing major dysfunction in at least two components, or moderate dysfunction in at least three components. ESE (Epworth Sleepiness Scale). This is a self-administered questionnaire that assesses the probability of falling asleep in eight situations involving daily activities, some of which are known to be highly soporific. The

MAAS (Mindful Attention Awareness Scale). It is a 15-item unidimensional measure of mindfulness. Each item is rated on a Likert scale between 1 (almost always) and 6 (almost never) in relation to the interviewee's daily experience. Higher scores reflect higher levels of dispositional mindfulness