As they age, the intestinal elimination function can be altered by external factors. Sleeping is also a vital need for maintaining health. Sleep time varies with age (from 18h / day for an infant to 7h30 on average for an adult) and sleep disorders increase with age (INSERM source). In our study, the night is from 9 pm to 7 am, corresponding to the working hours of the night shift. Between 42% and 50% of episodes of wakefulness of more than 4 minutes in EHPAD are due to noise, light or the practice of care related to incontinence. 87% of all incontinence care practices have been associated with wake-up episodes. A personalized day care program would allow residents to improve the quality of their sleep by minimizing stools at night and therefore interventions by caregivers.

The ritual of stools, can be defined as the set of rules to observe to defecate in good physiological, physical conditions:

• Be in a suitable place for intestinal elimination: personal bathroom preferably on the toilet or on a pierced chair that will perhaps be more secure and comfortable with the armrests. The position to be taken is important.
• Propose a small bench to put under the feet to raise the knees higher than the hips and increase the abdominal pressure.
• Preserve the visual and auditory intimacy of the resident at the time of defecation. Failure to do so may result in the person repressing his desire to defecate.
• Allow the resident the time needed on the toilets the doorbell at hand and with the assurance that the caregiver will come back in a short time. Do not press it and do not forget it, privilege the autonomy and check that there is toilet paper.

The establishment of the stool ritual is not intended to reduce the amount of stool by day, but it aims to postpone the nighttime exemption on the day, and does not prevent the stool emission to other times of the day or night.

Inclusion Criteria:

• Dependent elderly people living in institutions for elderly dependents.
• GIR 1 or 2
• Residents being able to sit in a seated position on a pierced chair or a safe toilet.
• Residents who have lived in the institution for at least 1 month in order to limit the biases due to the change of place of life

Exclusion Criteria:

• Residents with the physical and cognitive abilities to go to the toilet alone wisely.
• Residents with stomies
• Residents with a history of intestinal occlusion
• Residents participating in another study.
• Residents under guardianship or safeguard justice