Quality of sleep not only depends on mattress. There are other important factors that could not be ignored, namely light.
If you have a very comfortable bed but still could not sleep well, maybe the fault is in the light of the room. It could be light in the room is too bright or too dim.

In the room like a bedroom which has a primary function as a place to rest, too bright lighting would be very disturbing. Not only that, turned out to sleep with the light can cause nerve damage because the eye was allegedly still working when you sleep in a bright room.

Consider sleeping in the hotel area. There was no light in the ceiling, right? All made hidden or indirect, except near the door or a bathroom that is still possible to use downlights.

The main reason why the lamp was installed in the ceiling of direct exposure to sunlight and interfere with sleep. Meanwhile, the room was too dark sometimes makes sleeping uncomfortable, especially for people who have a phobia of the dark narrow places.

The best solution is to use indirect lighting in the sleeping area. Because hidden biases reflected light becomes more refined. Not forgetting, select light yellowish to warmer. The room is dim, sleep more soundly