I received this but it has been sitting unused in storage. Summers are getting hotter every year due to global warming. How about this as an aid for a good night's sleep during the summer? ☆ Thank you for your consideration. m(_ _)m It has a cooling effect to lower body temperature and the 75X140cm size supports comfortable sleep. - Size: 75X140cm - Product Name: Cooling Sheet - Effect: Cooling effect to lower body temperature - Environmental Conditions: Lasts for 2 hours at 28°C and 65%RH Thank you for viewing. Please note that although this is an unused item, I am selling it as a used item, so please understand and accept this. m(_ _)m #CoolingMat #Heat対策 (Heat countermeasures) #SleepAids #CoolSleepGoods