... sleep in Summertime with 2-3 degree centigrade body temperature reduction. adjustable temperature mattress's advantage introduction first , product characteristic JIA ... the use of electric blankets and nose, dry, itching skin, chest tightness, dizziness, etc 2, liquid flow in Mattress , not ... a long time using air conditioning or fan of headache, chest tightness, pain in the bones and tendons, limbs and ...