You sleep on your stomach
Lying on your stomach can increase the strain on your spine, whilst sleeping on an overly soft, bumpy, uneven or hard mattress can also lead to problems.
Try and sleep on your back, this is the best possible sleep position as your weight is distributed evenly over your joints. If you need to sleep on your side, try and alternate each night and place a pillow in between your knees to keep your spine aligned. Try the mattress test to make sure you’ve got the right support: lie on your back and put your hand underneath the small of your back. If you can slide it in easily, then your mattress may be too hard. If you can’t get your hand in then your mattress may be too soft. If you can just about slide your hand under, it’s just right!