For extended use of an iPad or a laptop in bed, I still prefer the Wizard that I recommended earlier in this thread.
But if you want something smaller, I also use an iPad Riser stand in bed sometimes. The cool thing about it is that you can set the angle exactly as you want. It has continuous adjustment of both tilt and rotation, so there are 4 different positions you can use in bed. (lol that sounds kinky)
1. I can sit up and have the Riser on my lap like most stands. It's really stable.
2. I can lay on my back with the Riser on my chest. In this case, I flip the bas around to the front and tilt the iPad forward. It actually tilts forward so it's easy to look up at the screen.
3. I can lay on my side with the Riser beside me. When you lay on a pillow, your head isn't exactly horizontal, but the Riser is that you can rotate the screen partially, so you can match the angle of your head exactly and everything looks upright. I set mine to about 35 degrees I think. I haven't seen any other stand that does this.
4. You can place the stand in the middle of the bed tilted back a little so two people can share.
Here's a link:
iPad 2 Stands - RISER IPAD STAND
Oh, one warning: the adjustment on the base is really tight. That means it's really sturdy, but you have to use both hands and apply pressure to adjust the angle.