The concept of nasal pillows are sensitive to nasal irritation. Instead of using prongs that insert into the nose it uses a cradle to seals all around the nose. It has a small CO2 exhalation slit in the cushion and on all the pressure setting. Users may want to consider purchasing a CPAP tube lift kit that sits beside your bed and allows for greater movement or consider using a 8ft or 10ft tube to accommodate more freedom to move about the bed. It is very lightweight and includes mask strap pads that eliminate red marks or irritation to the skin where the mask frame comes in contact with your face.