Normally only a fraction of the total home range is covered in a single day's ranging. The average daily travel distance was estimated at 468m for Saguinus geoffroyi groups. Tamarins tend to be more mobile and range farther in the morning than during the remainder of the day. A second, minor peak of mobility often occurs in the late afternoon. Sleeping sites The members of a group normally roost together, huddled or piled up in one compact group.
Individuals sleep with legs, arms, and tails drawn up to the body.
The roosting related behavior of tamarins appears highly adaptive. Adult offspring and parents are at either end of the order of rising and retiring, providing protection for the less mature animals in between. Sleeping sites are changed frequently and are selected to minimize contact with other trees in the habitat, a good predator defense mechanism. Huddled tamarins may deceptively mimic some sort of toxic object such as a termite nest, to deter predators further. The huddling and individual body postures along with the decreased metabolic rate serve to minimize heat loss at night.