I purchased two ( not cotton filled) doonas and after a week of sleepless nights I discarded them and purchased these. Yes more expensive but much much more comfortable. We love them -just seen to retain the correct temperature- make sure you use 100% cotton covers though!!
Note: we have two as we sleep the European way- king size bed- single doona each - heaven!
VEVOR 7-in-1 Wi-Fi Weather Station 7.5 in Color Display Wireless Outdoor Sensor