Well i guess you could try some of these things
* Play a portable game system
*Draw
*Read
*Listen to music
*Sleep (I usually sleep for like an hour/30 min on one side and the same time on the other. Just cause im so white XD)
*Paint your nails?
*Write
*Read (But you've already done that)
*If you have a laptop that has internet/wifi use that
*Have a friend tan with you and just talk!
I hope i helped somewhat Boredom sucks!