How to spend hot nights?

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Now it's June,it's a little hot. Have you found it's difficult to sleep. Oh,a little annoyed. One night, I counted 1 to 100. However, it is useless. I complained to my colleagues. One suggested me to DTY something. If you just force yoself to sleep, you'll find it's more difficult to get asleep. According to her suggestion, I bought some beads,wire, etc. to make some jewelry,just as necklace. En , may be this is a good method. Surfing on internet, buy some cores, wire and beads from a shop online named "aokeshen". What about your idea? Just share your methods with me. May your way is a better way.