There are numerous mattress providers on the market and even more mattress types. The users have to decide, for example, whether the mattress should be usable on both sides, whether the lying surface has to be hard, soft or somewhere in between for a healthy sleep and whether a cold foam, latex or innerspring mattress is worthwhile. There are pros and cons to all of these points. The research can therefore quickly become very extensive. It’s also not that easy, because to try it out you either have to go to a specialist shop (and test it under rather artificial conditions) or order the mattress online – at the risk of having to send it back.