We didn't buy the cheapest, but tried them out. If you can get to a Dreams branch (they have hundreds) and are prepared to take your shoes off and lie on the mattresses, I know no better way to be sure the mattress is OK
Some years ago when DD had a very limited budget she bought a bed frame and mattress there and remains very pleased with her purchase.
NHS U turn on trans terminology
Good Morning Monday 29th April 2024