Is sleeping in polyester pajamas bad for your health?

Sleeping in polyester pajamas exposes you to multiple concerns during the longest continuous period of textile contact in your day. Polyester does not breathe well, trapping heat and moisture against your skin and disrupting your body's natural temperature regulation during sleep. This can reduce sleep quality and promote bacterial growth that contributes to body odor and skin irritation.

During sleep, body heat warms the fabric and accelerates off-gassing of residual chemicals including antimony trioxide and VOCs. The enclosed space beneath your bedcovers concentrates these airborne compounds in your breathing zone for 7 to 9 hours. Polyester pajamas also shed microplastic fibers into your bed, which you then breathe in throughout the night.

Switching to natural-fiber sleepwear made from organic cotton, merino wool, or Tencel can improve both sleep quality and reduce chemical exposure. Natural fibers regulate temperature, wick moisture, and allow your skin to breathe during sleep. They do not off-gas synthetic chemicals or shed microplastics. ONDU's sleepwear collection prioritizes these materials for healthier, more comfortable rest.