The Amerisleep AS3 has a firmness of 5 out of 10 (where 10 is the most firm), a medium feel.

This would include the AS3 all-foam mattress as well as the AS3 Hybrid (foam + coils). A medium firmness is a suitable firmness for a wide range of sleepers.
It is firm enough to provide support and avoid excess sinkage, while being soft enough for good pressure relief and hug / contour.
AS3 All-Foam

AS3 Hybrid

That being said, heavier sleepers or those who sleep on their back or stomach may find this firmness to be too soft.
Not sure which firmness is right for you? Check out our chart below which lists our recommended firmness range for different sleeper profiles.
