Im 65  and 275lbs.  Im not real happy with my purches.  On a scale of 1 to 10 for firmness.  I give this mattress a 6. If your looking for a old school 10 innerspring mattress firm . Dont get this. I sink into this mattress too far.  Im waking up with shoulder and neck soreness.  Its not just my pillow.  Ive tried 4 different ones allready. Im a side sleeper also.  If your a back sleeper you will probably like this. Im gonna give it a full 30 days to make sure I dont just need to adjust but as of now I plan to return it.