Spend as much as you can afford, rather than thinking of it as a cost you should consider it an investment. You spend longer in bed (approximately 8 hours or a third of your life) much more than in any other one place. There are so many health benefits from achieving a good nights sleep that spending a little extra on the all important mattress, will prove to be money well spent.
The correct support is essential, it reduces pressure on your spine, joints and especially your lower back. They now say, ‘correct support is best’, which means your heavier or pronounced body parts are absorbed by the mattress, and your spine and lower back is supported in the correct position.
Mattress Sizes Are As Follows:
Shorty Single-Ideal For Toddler Beds/Small Bunks- 75cmx 175cm ( 30 inches x 70 inches)
Single Mattress-90cm x190cm ( 35 x75 inches)
Double Mattress- 135cmx190cm (53 x75 inches)
Kingsize Mattress- 150cmx200cm (59x79 inches)
Buy the biggest bed you have space for, especially if you share the bed with a partner, as it is proven that both sleepers achieve a better nights sleep in a larger bed. But do not choose size over quality. Choose the best bed for support and comfort first, and then buy the biggest you can afford in that style.
This is down to personal choice, however there are a number of options now, with pocket spring sets and orthopaedic springs as well as advancement in foam and memory foam mattresses you no longer need to have a firm mattress to get the correct support.
Deep Fillings provide the best comfort levels. Look for foam combined with Memory Foam for the best mix, due to the combination of support and comfort.