cheap little beds should be uncomfortable, but expensive double beds should be VERY restful! So where are they?
On the other hand, sometimes I want to create a terrible environment (just so I can rescue them!) so, any suggestions? :D

Honestly, the best thing to do is mod your beds:

Step by Step Instructions on How to Increase Energy and Comfort for a Bed by rebecah.

If you have a custom bed, just open it in SimPE instead of cloning it--you only need to import globals if the custom bed that you are editing doesn't have the sleep bhav for you to edit. If you don't know what values to input, then clone a bed with the values you want and look at what its values are in simPE.

For changing environment score (especially on a bed), I'd check out this thread: How do I change the environment/room score of an object?