Well, you could always buy a 10 foot extension cord. 10 feet of extension cord is likely to cause far less degradation than going wireless. I would rather have one great set of headphones or earphones than to split your purchase over two pieces just to overcome the 10 feet between your system and bed. If you decide to buy etymotics, the best price I've seen was from....
http://headroom.headphone.com/layout.php?topicID=3&subTopicID=26&productID=0020100000
I, personally, have not heard the Etymotics. They are $40 more than the Shure E3's. I'm happy with the Shure E3's, but that's without hearing the Etymotics. Either the Sennheiser 280 Pro's or the Shure E3's will sound great with an i-pod and Etymotic also makes a set to go with players like the i-pod.
If you're looking to get bang for the buck and don't like things "in" your ears, go with the Sennheiser 280 Pro's, they'll work on a plane or in your bed with an extension cord. If you're not on a budget and don't mind earphones that must be inserted, demo the Shures and Etymotics.
>