Don't worry they won't. I like my Exped Airmat 5 but will most definitely definitely upgrade to a thermarest Neo Xlite since everybody seems to like those
I fidget and roll about but I tend to be a side sleeper and this mat is perfectly comfortable. Ive used a thermarest one in past and whilst it was lighter and a bit warmer it was no comfier and cost about 3x what the decathlon bad boy did.
https://www.decathlon.co.uk/forclaz-air-inflatable-camping-sleeping-mat-red-50cm-id_8298497.html?_cclid=v3_5681bfe4-de1c-5d5f-8489-9e04e950776a&gclid=CjwKCAiA8bnUBRA-EiwAc0hZk5jrx0DmsgldqcpcjzfucGv5wFlE20YCoQSo2vTIScBt-uCzjZtK1RoCzGAQAvD_BwE
I have this and apart from the valve which is a bit crap it works great and packs down to about the size of a coke can.