The test bed :: bed to bed, the test is not too common. But a bed with luxury features. As a test bed to test it to check that it actually makes me sleep.
More test beds:: bed taken, test-bed is not common, but there are special properties, luxury beds that sleep is required for testers test checks whether it makes sleeping comfortable, actually?
A test bed: bed brought to the test bed is not common, but it is a luxury bed with extra features that a test will be required to sleep test to check that it makes it easy to sleep?