I love the summer, man!
Have you tried sleeping with wet socks on? Normally if your feet are cold your whole body cools down. Or maybe just a wet towle at your footend of the bed? When it gets real hot here, we usually just sit outside till it cools down enough inside the house and then go to bed. So on hot days/periods everybody sits outside till way after midnight it's really cool actually. Everywhere people outside having a drink and a laugh...