Leaving it on bed to listen to music is ok isn't it? I place it the side, near my pillows, uncharged, but play music, I don't have a long play list about 3 hours long (I listen to music to help me sleep). Thanks for the advise though.
Ultimately, placing it on the carpet or bed itself won't do too much damage to the device whatsoever and most people just threat their device as a normal "thing" used around the house.
I have always tried to ensure lossless quality for all of my devices (obsessive a little bit) and try to think about the minute details that can (extremely slowly) degrade any machines performance. So, ultimately, the ground has dust, hair, and bacteria on it -- so even when I put my device on the ground, I try to have a small book underneath it so that it doesn't get as warm and doesn't touch the actual carpet and/or dust.
Again, though, for a casual use of the iPad in the way you're suggesting, you'll be fine, but if you can, just keep a small book next to your bed so you can lay the iPad on top of it. I hope this helps a little!
